Sewer dirt cleaning device and cleaning method

The invention relates to the technical field of sewer dirt removal, and particularly discloses a sewer dirt cleaning device and a cleaning method.The sewer dirt cleaning device comprises a device body, a rotating roller is arranged on the device body, and a plurality of bosses are arranged on the surface of an inner cavity of the rotating roller; a shovel plate is detachably arranged at the front lower part of the rotating roller; the upper end of the shovel plate extends to an inner cavity of the rotating roller; the sludge solid waste collecting channel axially extends into the inner cavity of the rotating roller to be distributed; a sewer solid-liquid mixture conveyed to the inner cavity of the rotating roller through the shovel plate flows through the inner cavity of the rotating roller and flows out from the rear end of the rotating roller. The method has the beneficial effects of high solid-liquid phase separation efficiency, shortened construction period, low transfer cost and the like. 本发明涉及下水道除污技术领域，