The invention provides a stirring mud scraper for a clarification tank, which includes a steady flow cylinder, a reducer, a sleeve coupling, a working bridge, a lubricating water pipe, a rake frame, a transmission shaft, a mud scraper, a mud discharge pipe and a connecting flange , one end of the reducer is arranged inside the steady flow cylinder and the bottom end of the reducer is connected with a transmission shaft, the steady flow cylinder is arranged inside the working bridge, the surface of one end of the transmission shaft is fixed with a sleeve coupling and The transmission shaft runs through the bottom end of the steady flow cylinder, and the other end of the transmission shaft is provided with a connecting flange, and the connecting flange is connected with a plurality of steel wire ropes. The present invention has compact structure, high reliability, good stability, and no shaking , stable transmission, low power consumption, good mud scraping effect, small footprint, low cost of use, box-shaped structure, greatly lighter than traditional mechanisms, low operating costs, good economic and social benefits, suitable for popularization and use .