Dedusting device for constructional engineering

The dust removal device comprises a main body, a shower head and a water mist mechanism, a plurality of channels are arranged in the main body, one end of each channel penetrates through one end of the main body to form an air inlet, the other end of the main body is provided with an air outlet, the air outlet is communicated with the channels, and an air suction device is arranged in the middle of each channel. A first containing groove and a second containing groove are formed in the outer side of the body, the first containing groove communicates with the channel, a first water tank is slidably connected into the first containing groove, a second water tank is slidably connected into the second containing groove, one end of the shower head is connected with a first water supply mechanism, and a water inlet of the first water supply mechanism is formed in the first water tank. The water mist mechanism is arranged at the top of the body, one end of the water mist mechanism is connected with a second water su