The invention relates to a coal removal device for a coal mine underground belt haulage roadway, and belongs to the technical field of mining equipment. The coal removal device for the coal mine underground belt haulage roadway comprises a cleaning assembly, a frame body assembly and a transmission assembly; the cleaning assembly comprises a coal leading plate and a coal sweeping rake; the coal sweeping rake is positioned above the coal leading plate; and the coal sweeping rake is rotatably connected with the coal leading plate. The frame body assembly comprises a fixed frame and a telescopicframe which are connected in sequence; the front end of the telescopic rod is fixedly connected with the coal leading plate; the telescopic frame can stretch and retract in the length direction of thecoal leading plate; the transmission assembly comprises a power element, a driving wheel and a driven wheel are which are connected in sequence through a synchronous belt; a coal falling port which directly faces synchronous belt is formed in one end, fixedly connected with the telescopic frame, of the coal leading plate; and the synchronous belt is positioned below the coal falling port; and scattered coal cleaned and concentrated through the coal sweeping rake falls onto the synchronous belt for conveying. According to the coal removal device for the coal mine underground belt haulage roadway, mechanization of scattered coal cleaning is realized by means of the cleaning assembly, the frame body assembly and the transmission assembly, so that the labour intensity of operating personnel is reduced; the cleaning time is shortened, and the work efficiency is improved.