The air-driven fog gun machine atomizes water through high-pressure water pump and uses high-efficiency atomizing nozzle to change the water mist into small water mist particles with a diameter of tens of microns. Then the water mist is sent to the dust concentration area far away by the fan, and then absorbed with the dust, continuously increasing the dust volume. Then, under the action of gravity, it settles to the ground to purify the dust. Dust, the role of environmental protection.