Dust removal device for building construction site

The utility model relates to the technical field of building dust removal, in particular to a building construction site dust removal device which is characterized in that a water storage tank is arranged on the surface of a movable support, a supporting frame and a driving motor are arranged on the surface of the water storage tank, and a sprayer and a rack are arranged on the side face of the supporting frame; the dust removal device for the building construction site has the beneficial effects that firstly, water in the water storage tank is atomized and sprayed out through the spraying device to remove dust in air, and when dust at a higher position needs to be removed, a driving motor is started to drive a gear to rotate, so that the dust in the air is removed; then the rack is lifted and moved through the meshing effect that the gear is matched with the rack, then the supporting frame can be moved upwards, a sprayer can be moved upwards to remove dust at a higher position, and the problems that a tradit