Municipal dustproof net

The utility model relates to the field of dust screens, in particular to a municipal dust screen which comprises a vertical rod, a supporting mechanism and a height adjusting mechanism, side plates are installed at the lower ends of the front side and the rear side of the vertical rod, a supporting plate is installed between the side plates through a rotating shaft, and the supporting mechanism used for fixing the supporting plate is arranged in the side plates. A height adjusting mechanism used for adjusting the height of the dustproof net is arranged on the upper side of the vertical rod, and a net body is installed on the side wall of the upper end of the height adjusting mechanism. When the dustproof net needs to be installed, a net body needs to be stably positioned, a supporting plate installed through a rotating shaft is rotated forwards and backwards, a rotary knob is twisted to drive a first bevel gear to rotate and drive a second bevel gear to rotate in a meshed mode, a connected screw rod is driven