Dust screen for construction site

The utility model discloses a dust screen for a construction site, which belongs to the technical field of dust screens, and adopts the technical scheme that the dust screen comprises a winding drum, the inner wall of the winding drum is movably connected with a winding shaft, the surface of the winding shaft is fixedly connected with a dust screen body, and the right side of the winding drum is provided with an opening. One end of the dustproof net body is fixed to the surface of the winding shaft, during laying, the winding shaft is placed at one end of the laying position, a user can pull the side, with the opening, of the dustproof net body and stretch the dustproof net body, the winding shaft rotates during pulling, and the dustproof net body wound on the outer side is taken out; the dustproof net body can be laid in a labor-saving mode, after laying is completed, the dustproof net body and the balance weight mechanism can be connected, then materials such as building silt are poured into the dustproof n