CN105126497A - Water filter material air purification device - Google Patents

Abstract

The invention discloses a water filter material air purification device, which comprises a water tank, wherein a containing space for containing water liquid is arranged in the water tank, a plurality of air inlets and a plurality of air outlets are arranged on the water tank, a cover body is arranged at the upper end of the water tank, a plurality of air inlets which are the same as the water tank and a water storage tank are arranged on the cover body, a water pump connected with a pressure equalizing device is arranged in the water tank, a plurality of jet pipes are connected to the pressure equalizing device, and the jet pipes are correspondingly connected with the air inlets through a plurality of air inlet pipes; the water pump pumps water in the accommodating space, the jet pipes absorb air outside the air inlets and decompose and mix the water according to the jet principle, and the air inlets arranged on the water tank in multiple directions filter impurities in the air, so that the air is quickly purified in a wide range, and the environment-friendly advocation is achieved by using water filter materials.

Description

Water filter material air purification device

technical field

The invention relates to an air purification device, in particular to a water filter material air purification device using water liquid to filter air.

Background technique

According to the investigation of the Environmental Protection Agency, the indoor air pollution level of many families is extremely high, which is several to dozens of times that of the outdoor air pollution. Therefore, the human body is prone to problems such as lungs, allergies, and asthma. Air purifiers will be purchased to improve the quality of indoor air.

Generally, air purifiers that use fan-type suction and exhaust use a motor to rotate the leaf fan, and the air is sucked in by the continuous high-speed rotation of the leaf fan, and the suspended particles in the air are filtered by using multiple filters at the front end of the fan blade to achieve The purpose of purifying the air, however, the filter cannot filter 100% of the finer suspended particles in the air. Compared with air sensitivity, people feel that it is only slowing down rather than solving it, and the filter needs to be replaced frequently to achieve the maximum value of filtered air. Efficiency, therefore, the problem of fine suspended particles in the air still exists, and when the filter screen and fan blades are constantly attached with dust impurities, in addition to increasing power consumption and noise, it also reduces the range of air suction, and the relative increase in replacing the filter screen The burden of family expenses.

There is a device on the market that utilizes water to filter and purify gas, such as China Taiwan Patent Publication No. 201041642, which is a water circulation absorption type hydrogen sulfide air cleaning device 1, that is, the existing one is also shown in Figure 1, including a water storage tank 10, A pump 11, a venturi tube 12, a side pipe 13, a filter and diversion device 14, an ion concentration monitoring device and a timing switch, and the water liquid W3 is sent out by the pump 11, flows through the venturi tube 12 to accelerate, A pressure difference is formed in the venturi tube 12, and the side pipe 13 attracts the gas A3 into the water liquid W3 to complete the mixing of gas and liquid, so as to dissolve and remove the hydrogen sulfide component in the gas A3 and obtain the cleanliness of the air A31. However, an existing There is a major structural defect, the gas A3 introduced by the venturi tube 12 is mixed with the water liquid W3, and the clean air A31 cannot be discharged in the water storage tank 10. When the air A31 accumulates excessively in the water storage tank 10, the pressure of the air A31 The water liquid W3 extracted by the pump 11 gradually decreases, and finally the Venturi tube 12 cannot achieve the mixing and purification effect of the extracted gas and liquid.

Another kind of device that utilizes water to filter gas is cited, such as China Taiwan Patent Announcement No. 352007, which is a Venturi bubble scrubber exhaust gas treatment device 2, which is the existing two and please refer to Figure 2. By While the circulation pump 21 is pumping the absorption liquid W4 of the scrubber in circulation, the waste gas A4 is sucked in by the Venturi vacuum suction device 23 bypassed by the pumping main pipe 22, so that the waste gas A4 and the absorption liquid W4 of the scrubber are mixed and contacted, atomized into bubbles and mixed Then, the gas-liquid is thoroughly mixed again through the static stirring tube 24, and finally sprayed out by the aeration tube 25 in the circulating water tank 20, so that the dust in the exhaust gas A4 is fully captured by the scrubbing tower absorption liquid W4, and then immersed in the circulating water tank Within 20, the purified air A41 is naturally discharged by the exhaust pipe 26 to achieve the treatment of the waste gas A4 and the purification effect of the air. However, the existing two are not suitable for household use. The single-group Venturi vacuum suction device 23 sucks the waste gas A4 The purification efficiency is not good, and the absorption liquid W4 of the scrubber needs to be replaced manually from time to time to achieve the best purification effect of exhaust gas A4.

Contents of the invention

The purpose of the present invention is to provide a water filter material air purification device, which uses the principle of jet flow to inhale and filter the air outside the multiple air intake holes on the water tank when the water liquid passes through multiple jet tubes, so as to achieve rapid and wide-ranging purification. High replacement rate of air effect and air convection.

In order to achieve the purpose of the aforementioned invention, the present invention proposes a water filter material air purification device, said air purification device includes a water tank, a water pump, a pressure equalizing device, a plurality of air intake pipes, a cover body and a water overflow container; There is an accommodating space for installing water in the water tank, an opening is provided above the accommodating space of the water tank, and a plurality of air inlets and a plurality of air inlets communicating with the accommodating space are distributed on the upper periphery of the water tank. The exhaust port and the upper periphery of the water tank are provided with a drain hole communicating with the accommodating space, and the position of the drain hole in the water tank is set to be lower than these air intake holes and these exhaust ports; Below the accommodating space of the water tank; the pressure equalizing device is connected to the water pump, a pressure equalizing chamber is provided in the pressure equalizing device, and a plurality of jet tubes are arranged on the periphery of the pressure equalizing device, The pressure equalization chamber communicates with the inside of the water pump and these jet tubes respectively; the two ends of the plurality of air intake tubes are connected with the air intake hole and the jet tube respectively; the cover is arranged on the corresponding opening cover. The upper end of the water tank, the cover is provided with a plurality of air intake holes and a water storage tank that are the same as the water tank, and these air intake holes of the cover body are respectively connected with these jet tubes through these air intake pipes, and the water storage tank The lower end of the container is connected with a water inlet pipe extending into the water in the accommodating space; the overflow container is set correspondingly to the drain hole for connecting the water overflowing the drain hole.

Further, the water filter material air purification device of the present invention further includes at least one extension pipe, and the extension pipe is connected and arranged outside one of the air inlet holes.

Furthermore, in the air purification device with water filter material according to the present invention, an internal thread is provided on the inner side of the diameter of the air inlet pipe connected to one end of the air inlet hole, and an external thread is provided on one end of the extension pipe, and the extension pipe is provided with an external thread. One end of the pipe is screwed with the internal thread of the air intake pipe through the external thread.

Furthermore, in the air purification device with water filter material according to the present invention, a plurality of supporting parts protrude from the bottom of the accommodating space, and these supporting parts are used for elevating and connecting and fixing the water pump.

Further, the water filter material air purification device according to the present invention, wherein, the upper end of the water storage tank is provided with a water storage opening and a set of outer cover covering the water storage opening, the outer cover is provided with a through stomata.

Furthermore, in the water filter material air purification device of the present invention, a groove is recessed inward on one side of the water tank, the drain hole is set at the upper end of the groove of the water tank, and the overflow The container is arranged in the groove, and an overflow opening at the upper end of the overflow container is arranged corresponding to the drainage hole.

Furthermore, in the air purification device with water filter material according to the present invention, a connected drain pipe is provided below the overflow container.

Furthermore, in the air purification device with water filter material according to the present invention, a water drain valve communicating with the bottom of the accommodating space is provided on one side of the lower peripheral edge of the water tank.

Furthermore, in the air purification device with water filter material according to the present invention, a plurality of rollers for moving the water tank are provided at the lower end of the water tank.

By virtue of the above-mentioned technical solution, the water filter material air purification device of the present invention has the following advantages compared with the prior art:

1. The present invention uses water to mix and filter the bacteria or germs or suspended particles contained in the air, resulting in one-way isolation in the water, which not only improves the quality of the air, but also achieves the purpose of curbing the spread of infectious diseases, and The carbon dioxide contained in the air is absorbed and mixed and dissolved in the water, which relatively achieves the effect of energy saving and carbon reduction.

2. The present invention decomposes and mixes water and air violently in these jet tubes to release natural negative ions in the air. Dust, bacteria) convective absorption and mixing to achieve the effect of air purification, relieve discomfort, and the body will naturally return to a healthy state.

3. The present invention adopts a submerged water pump, which will not cause overheating, self-explosion or spontaneous combustion under the cooling of water for long-term operation, and the volume generated by operation can be reduced through water.

4. The drain hole of the present invention is flush with the water liquid level in the storage space, and the water liquid fluctuates in the storage space when the water pump is running, so that part of the water liquid overflows the drain hole and is taken over by the overflow container, and the water storage tank Clean water is replenished into the accommodation space through water pressure sensing, forming a flow cycle that automatically replenishes water, so as to keep the water filter material clean, and adopt various water filters such as clear water, salt water or potion according to the environment. materials, so it is convenient to obtain materials, saves expenses and is in line with environmental protection benefits.

5. The present invention adopts the arrangement of multiple jet tubes. When one of the jet tubes is blocked or damaged, the rest of the jet tubes can continue to operate and exert their functions.

6. There are rollers on the bottom of the air purification device of the present invention, so that the mobile air purification device can be used to purify the air anytime and anywhere, and the air inlet hole can be plugged with an extension tube, and the extension of the extension tube can be used for a wider range and focus type like a vacuum cleaner. If it is placed in the bathroom, the air purification device can be used to absorb the moisture in the bathroom, and the extension tube can absorb the accumulated water on the ground, reducing the wetness in the bathroom and improving environmental safety.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is the schematic diagram of an existing water circulation absorption type hydrogen sulfide air cleaning device.

Fig. 2 is a schematic diagram of an existing dual Venturi bubble scrubber exhaust gas treatment device.

Fig. 3 is a three-dimensional exploded view of the air purification device of the present invention.

Fig. 4 is a schematic cross-sectional view of the air purification device of the present invention.

Fig. 5 is a schematic cross-sectional view of the jet tube of the present invention.

Fig. 6 is a partially enlarged schematic diagram of the connection between the extension pipe and the air inlet of the present invention.

Fig. 7 is a schematic diagram showing the mixing of the water liquid in the jet pipe and the gas flow in the air inlet pipe of the present invention.

Fig. 8 is a schematic diagram of the water in the accommodating space of the present invention sloshing and overflowing the drainage hole.

Fig. 9 is a schematic diagram of the water storage tank of the present invention replenishing clean water into the accommodating space for circulation.

FIG. 10 is a schematic diagram of the implementation of the air purification device of the present invention equipped with rollers and multiple extension pipes.

Among them, reference signs:

1 water circulation absorption hydrogen sulfide air purification device

10 water storage tank 11 pump

12 Venturi tube 13 Side tube

14 Filtration and diversion device A3 gas

A31 air W3 water liquid

2 Venturi bubble scrubber exhaust gas treatment device

20 circulation tank 21 circulation pump

22 Trunk Tube 23 Venturi Vacuum Aspirator

24 static stirring tube 25 aeration tube

26 exhaust pipe A4 exhaust gas

A41 Purified Air W4 Scrubber Absorbent Liquid

3 Air purification device 4 Water tank

40 Groove 41 Accommodating Space

411 support part 42 opening

43 Air intake hole 44 Exhaust port

45 drain hole 46 drain valve

47 roller 5 water pump

50 locking unit 51 locking part

52 Extraction port 53 Discharge port

6 equalizing device 61 equalizing chamber

62 jet tube 621 front end

622 rear end 623 first tapered hole

624 second tapering hole 625 water-air mixing space

63 air inlet 7 air intake pipe

70 internal thread 71 extension tube

711 external thread 8 cover body

81 water storage tank 811 water storage opening

812 outer cover 813 air hole

814 water inlet pipe 9 overflow container

91 Overflow opening 92 Drain pipe

A1 gas A2 clean gas

AW bubble liquid O foreign matter

W1 water liquid W2 clean water liquid

Detailed ways

The following will be explained in detail by means of specific embodiments in conjunction with the accompanying drawings. When it is easier to understand the purpose, technical content, characteristics and effects of the present invention, and before the present invention is described in detail, it should be noted that In the following description, similar components are denoted by the same reference numerals.

The present invention is a water filter material air purification device, as shown in Figure 3 and Figure 4, the air purification device 3 includes:

A water tank 4, said water tank 4 is provided with an accommodating space 41 for installing water liquid W1. An opening 42, the upper periphery of the water tank 4 is provided with a plurality of air intake holes 43 and a plurality of exhaust ports 44 communicating with the accommodating space 41, and one side of the water tank 4 is recessed inwardly. Groove 40, described water tank 4 is provided with a drainage hole 45 at the upper end of groove 40, and the position of described drainage hole 45 on water tank 4 is set to be lower than these air inlets 43 and these exhaust ports 44, and described water tank 4. One side of the lower peripheral edge is provided with a drain valve 46 communicating with the bottom of the accommodating space 41;

A water pump 5, the water pump 5 is arranged below the accommodating space 41 of the water tank 4, and the locking part 51 at the lower end of the water pump 5 is locked and connected to the supporting parts 411 of the accommodating space 41 through a locking unit 50 such as a screw , the water pump 5 includes a suction end 52 arranged away from the drain hole 45 and a discharge end 53 arranged near the drain hole 45;

A pressure equalization device 6, the pressure equalization device 6 is connected to the water pump 5, a pressure equalization chamber 61 is arranged in the pressure equalization device 6, and a plurality of jet tubes 62 are connected to the periphery of the pressure equalization device 6, so that The pressure equalization chamber 61 communicates with the discharge end 53 of the water pump 5 and these jet tubes 62 respectively, as shown in FIG. Between the front end 621 and the rear end 622, a first tapering hole 623 and a second tapering hole 624 are respectively tapered to form intervals, and the gap between the first tapering hole 623 and the second tapering hole 624 A water-air mixing space 625 is formed between them, the front ends 621 of these jet tubes 62 are respectively connected with the pressure equalization chamber 61, and the rear ends 622 of these jet tubes 62 are the discharge ports of the water liquid W1, and the water-air mixing spaces of these jet tubes 62 One side of 625 is respectively provided with a connected air inlet 63;

A plurality of air intake pipes 7 and at least one extension pipe 71, the two ends of these air intake pipes 7 correspond to these air intake holes 43 and these air inlets 63 of these jet pipes 62 are respectively connected and communicated, and these air intake pipes 7 are close to these air intake holes 43 The inside of the aperture at one end is respectively provided with internal threads 70. Please refer to FIG. 6 for reference. One end of the extension pipe 71 is provided with an external thread 711. The outer side of the air inlet hole 43 is screwed to the inner thread 70 of the air inlet pipe 7;

A cover body 8, the cover body 8 is provided on the upper end of the water tank 4 corresponding to the opening 42, and the cover body 8 is provided with a plurality of air intake holes 43 identical to the water tank 4 and a water storage tank arranged away from the drain hole 45 81, these air inlets 43 communicate with these air inlets 63 of these jet pipes 62 respectively through these air inlet pipes 7, the upper end of described water storage tank 81 is provided with a water storage opening 811 and a cover is arranged on the top of water storage opening 811 The outer cover 812 of the outer cover 812 is provided with a through air hole 813, the lower end of the water storage tank 81 is connected to a connected water inlet pipe 814, and the end of the water inlet pipe 814 corresponds to the extraction end 52 of the water pump 5 and will extend set into the water W1 in the accommodating space 41; and

An overflow container 9 is accommodated in the groove 40 of the water tank 4 , and the overflow container 9 is provided with an overflow opening 91 corresponding to the drain hole 45 .

The air purification device 3 of the present invention is combined by the aforementioned components, the cover body 8 is covered on the water tank 4, the air intake holes 43 of the water tank 4 and the air intake holes 43 of the cover body 8 pass through the air intake pipes 7 And the extension pipe 71 communicates with these air inlets 63 of these jet pipes 62 respectively; When the present invention is being put into practice, please refer to Fig. 4 and shown in Fig. Be flush with the position of the drainage hole 45, start the water pump 5 to extract the water liquid W1 in the accommodation space 41 from the extraction end 52, and discharge the high-pressure water liquid W1 from the discharge end 53 into the pressure equalizing device 6, so that the water liquid W1 The pressure in the pressure equalization chamber 61 is equalized and discharged by these jet tubes 62 respectively, wherein these jet tubes 62 use the principle of jet flow, when the water liquid W1 passes through the first tapered hole 623 from the front ends 621 of these jet tubes 62 Because the water liquid W1 is reduced by the cross-sectional area of the first tapered hole 623, greater water pressure flows into the water-air mixing space 625, and the water-liquid W1 passes through the air inlet 63 in the water-air mixing space 625 to generate negative pressure. Suction, the gas A1 around these air inlets 43 is sucked by the air inlets 63 and the air inlet pipes 7 respectively by suction, and the gas A1 containing bacteria or germs or suspended particles or moisture is sucked into the water-air mixing space 625 Mixed with the water W1 to form fine air bubbles AW, the air bubbles AW are compressed and discharged from the rear end 622 into the accommodating space 41 through the second tapered hole 624 .

Please continue referring to Fig. 7 and Fig. 8, after the air purification device 3 of the present invention absorbs the surrounding gas A1 through these air inlets 43 and the extension pipe 71, the gas A1 is violently mixed with the water liquid W1 in the water-gas mixing space 625. Collision decomposition, gas A1 is decomposed to contain clean gas A2 with natural negative ions and the bubble liquid AW mixed with water liquid W1. , smoke particles, even dust, bacteria) convective absorption combined to achieve the effect of air purification, reduce the discomfort of the environment, and the body will naturally return to a healthy state; while the water liquid W1 and the gas A1 collide violently in the water-air mixing space 625 The mixed air bubble liquid AW is discharged into the accommodating space 41 to form a one-way isolation and filtration of bacteria or germs or suspended particles in the water liquid W1 in the filtered gas A1, which can prevent the spread of infectious diseases, and the air contained in the gas A1 The carbon dioxide contained in the carbon dioxide is mixed with the water liquid W1 and dissolved in the water liquid W1, which relatively achieves the effect of energy saving and carbon reduction. The other part of the gas A1 containing foreign matter O such as oil gas or large dust particles cannot be mixed with the water liquid W1. And the water liquid W1 is pumped and discharged by the water pump 5 cycle, the water liquid W1 fluctuates in the accommodating space 41, and the lighter foreign matter O will float to the water surface and overflow the drain hole 45 with the water liquid W1, and it will be released by the overflow container 9 The overflow opening 91 accepts the treatment.

The air cleaning device 3 of the present invention has the following advantages:

1. When the air purification device 3 of the present invention is in use, the outer cover 812 will be opened to replenish the clean water W2. Please refer to FIG. The water pressure is synchronized. When the water W1 in the accommodation space 41 overflows from the drain hole 45, the water pressure drops, and the water storage tank 81 senses the lack of water pressure in the accommodation space 41 through the water inlet pipe 814, and the clean water W2 enters the accommodation space. 41, merged into the water pipe 814 and directly sucked and circulated by the pumping end 52 of the water pump 5; and the present invention is indirectly connected to the bottom of the overflow container 9 through a drain pipe 92 or directly connected to the drain hole 45, the drain pipe in the figure 92 shows that the overflow container 9 is set up indirectly, and the water liquid W1 mixed with foreign matter O is conveniently discharged by using the drain pipe 92, so that the air purification device 3 of the present invention can automatically replenish the water liquid W1 lost in the accommodating space 41, by flowing The water liquid W1 keeps the cleanliness and is mixed and filtered with the gas A1, so as to prevent the water liquid W1 containing foreign matter O from forming stagnant water circulation in the accommodating space 41 and reduce the effect of purifying the gas A1, so that the air purification device 3 of the present invention has a better performance. Air purification effect.

2. The clean water W2 in the water storage tank 81 uses clean water or saline or liquid medicine with bactericidal effect according to the environment, which is convenient to obtain materials, saves expenses and conforms to the concept of environmental protection.

Three. The water pump 5 of the present invention adopts a suction pump or a submerged pump. It is best to use a submerged pump so that the long-term operation of the water pump 5 will not cause overheating, self-explosion or spontaneous combustion under the cooling of the water liquid W1, and the water will pass through the water. The liquid W1 can reduce the volume produced by the operation of the water pump 5 , and the water pump 5 is elevated in the accommodating space 41 , so that the water pump 5 has a wider pumping range of the water liquid W1 .

Four. These jet pipes 62 of the present invention utilize these air inlet pipes 7 to connect and establish these air inlet holes 43 on the corresponding water tank 4 and cover body 8, can multifaceted, absorb the gas A1 around these air inlet holes 43 in a wide range, reach High replacement rate and purification effect of convection between gas A1 and clean gas A2.

5. When one of the jet tubes 62 of the air purification device 3 of the present invention is blocked or damaged, the rest of the jet tubes 62 can continue to operate and exert their functions.

Six. The air purification device 3 of the present invention is provided with a plurality of rollers 47 at the lower end of the water tank 4, as shown in Figure 10, so that the air purification device 3 can be displaced in the field anytime and anywhere, and the gas A1 in different positions is convectively purified, and the present invention The extension pipe 71 of the air cleaning device 3 can be used as a focus type to absorb gas A1 and dust like a vacuum cleaner. If it is used in a bathroom, the extension pipe 71 can not only absorb the moisture in the gas A1, but also absorb the incomplete combustion of gas. Leaked carbon monoxide reduces the amount of inhalation of the human body, and the extension pipe 71 can more specifically absorb the accumulated water on the ground or the accidentally overturned water W1, reducing the slippery indoors and increasing the safety of the environment; the air purification The device 3 can be equipped with multiple extension tubes 71 according to different environments, such as a hospital, where the extension of multiple extension tubes 71 can be used to absorb the gas A1 in a wider range, enhance the high replacement rate of air convection, and reduce the human body's pathogenic bacteria The infection rate of the invasion.

Certainly, the present invention also can have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (9)

1. A kind of water filter material air cleaning device, is characterized in that, described air cleaning device comprises: A water tank, the water tank is provided with an accommodating space for installing water liquid, there is an opening above the accommodating space of the water tank, and the upper periphery of the water tank is provided with a A plurality of air intake holes and a plurality of exhaust ports, and a drain hole communicating with the accommodating space is provided on the upper periphery of the water tank, and the position of the drain hole in the water tank is set lower than the inlet the air hole and the vent; a water pump, the water pump is arranged below the accommodating space of the water tank; A pressure equalization device, the pressure equalization device is connected to the water pump, a pressure equalization chamber is provided in the pressure equalization device, and a plurality of jet tubes are connected to the periphery of the pressure equalization device, and the pressure equalization chambers are respectively It is connected with the interior of the water pump and the jet pipe; A plurality of air intake pipes, the two ends of the air intake pipes are respectively connected to the air intake hole and the jet pipe; A cover body, the cover body is arranged on the upper end of the water tank corresponding to the opening cover, the cover body is provided with a plurality of air intake holes and a water storage tank which are the same as the water tank, and the air intake hole passes through the water tank The air inlet pipes communicate with the jet pipes respectively, and the lower end of the water storage tank is connected with a water inlet pipe extending into the water liquid in the accommodating space; and An overflow container, the overflow container is arranged correspondingly to the drain hole, for connecting the water overflowing the drain hole. 2 . The water filter material air purification device according to claim 1 , further comprising at least one extension pipe, and the extension pipe is connected and arranged outside one of the air inlet holes. 3 . 3. The water filter material air purification device according to claim 2, characterized in that, the inside of the aperture of one end of the inlet pipe connected to the air inlet hole is provided with an internal thread, and one end of the extension pipe is provided with an external thread, One end of the extension pipe is screw-connected with the inner thread of the intake pipe through an outer thread. 4 . The water filter material air purification device according to claim 1 , wherein a plurality of supporting parts protrude from the bottom of the accommodating space, and the supporting parts allow the water pump to be elevated and connected and fixed. 5. The water filter material air purification device according to claim 1, wherein the upper end of the water storage tank is provided with a water storage opening and a set of cover cover for the water storage opening, and the outer cover is provided with There are continuous air holes. 6. The water filter material air purification device according to claim 1, characterized in that, one side of the water tank is recessed inwardly with a groove, and the drainage hole is arranged at the upper end of the groove of the water tank, The overflow container is arranged in the groove, and an overflow opening at the upper end of the overflow container is arranged corresponding to the drainage hole. 7 . The water filter material air purification device according to claim 1 , wherein a connected drain pipe is provided below the overflow container. 8 . 8 . The water filter material air purification device according to claim 1 , characterized in that, one side of the lower periphery of the water tank is provided with a drain valve communicating with the bottom of the accommodating space. 8 . 9. The water filter material air purification device according to claim 1, characterized in that, the lower end of the water tank is provided with a plurality of rollers for the water tank to move.