Dustproof unit for belt conveyor and dustproof guide chute of dustproof unit

The utility model relates to the technical field of belt conveying equipment, in particular to a dustproof device for a belt conveyor, which comprises two side plates arranged in parallel. And the top plate is arranged between the two side plates. The top plate and the side plates are connected in a sealed mode through the fixing assembly. The multiple sealing assemblies are arranged outside the side plates and detachably connected with the side plates. A dustproof guide chute for a belt conveyor comprises a plurality of dustproof units, first connecting assemblies and second connecting assemblies, the first connecting assembly of one dustproof unit is connected with the second connecting assembly at the second end of the adjacent dustproof unit in a matched and inserted mode, and every two adjacent dustproof units are detachably fixed through sealing fasteners. And the sealing assembly is detachably fixed on the outer wall of the side plate, so that the structure adjustment during installation is facilitated