Device for cleaning accumulated coal at bottom of belt conveyor

The invention discloses a cleaning device for accumulated coal at the bottom of a belt conveyor, relates to the technical field of coal mine accumulated coal cleaning, and solves the problems that an existing accumulated coal cleaning mode is high in labor cost and long in consumed time. The device comprises a lifting platform assembly, a plurality of sliding rail assemblies and a bucket assembly. The bucket assembly is arranged on the lifting platform assembly and drives the bucket assembly to move up and down. A plurality of sliding rail assemblies are arranged on the two sides of the lifting platform assembly and drive the bucket assembly to move front and back. The bucket assembly comprises a switching support, the switching support is connected with the sliding rail assemblies when the bucket assembly moves front and back, and the switching support is connected with the lifting platform assembly when the bucket assembly moves up and down. The bucket is driven by the air cylinder to complete three cleanin