Construction site dust falling device for house building construction

The construction site dust falling device for house building construction comprises a conveying mechanism and an adjusting mechanism, the conveying mechanism comprises a water storage tank, the front face of the water storage tank is communicated with a first pipeline, a water pump is arranged on the back face of the water storage tank, and the input end of the water pump is communicated with a second water pipe; the end, away from the water pump, of the second water pipe communicates with the reservoir. The water storage tank is arranged to conveniently store a water source for dust falling, the first pipeline is arranged to conveniently communicate with an external water source, the water pump is arranged to be matched with the second water pipe and the third pipeline to conveniently output water to the inner cavity of the spraying device, and the water pump is matched with the bumping head to carry out dust falling and water sprinkling operation; water in the inner cavity of the water storage tank is conve