Dustproof LED display screen

The dustproof LED display screen comprises a shell and a display module arranged at the opening end of the shell, a mounting strip is arranged at the position, above the display module, of the front side of the shell, a groove is formed in the bottom of the mounting strip, a dust removal mechanism I is arranged in the groove, and a dust removal mechanism II is further arranged at the position, on the rear side of the display module, of the shell; the dust removal mechanism I comprises a transverse pipe penetrating through the side wall of the groove, an air outlet nozzle I is obliquely arranged on the side wall of the bottom of the transverse pipe in the direction towards the display module, a rolling bearing for fixing the transverse pipe is arranged on the side wall of the groove, and an air bag is further arranged at the bottom in the groove on the outer side of the transverse pipe and the air outlet nozzle I; the dust removal mechanism II comprises a screw tube, an air outlet spray head II is arranged on