Coal cinder cleaning device of scraper conveyor

The invention provides a coal cinder cleaning device of a scraper conveyor. The coal cinder cleaning device comprises a rotary bearing seat, a rotary bearing, a working device support, a supporting swing arm assembly, a telescopic arm assembly, a swing arm assembly, a shovel plate device adjustment rod, a shovel plate device assembly and a hydraulic control system which are connected with one another in a certain manner, wherein the hydraulic control system provides power for all the components, so that all the components can rotate, stretch, swing and the like in a smaller space to finish the coal cinder cleaning work on a triangular part where a head and a tail of the scraper conveyor are intersected; the problems of low safety, poor working environment, high labor intensity and the like which are caused by manual cleaning are solved.