Sludge dedicated stirrer

The invention discloses a sludge dedicated stirrer, and belongs to the technical field of environmental protection, and in particular relates to a stirring device. A reduction box, a rack and an installing bottom cover are arranged below a motor; a transmission shaft is connected with the reduction box through a shaft coupler after penetrating the installation bottom cover and the rack, the transmission shaft is connected with a stirring shaft through the shaft coupler, the bottom of the stirring shaft is provided with a bottom bearing, the stirrer is arranged on the stirring shaft, a support horizontal pipe of the stirrer is fixed on the stirring shaft through a square flange, a plurality of fixing levers and a plurality of scraper fixing levers are arranged on the support horizontal pipe, and a scraper is arranged below the scraper fixing lever. The synchronous rotation of the upper-layer stirrer and the lower-layer mud scraper is realized, the asymmetric design of the bottom mud scraper solves the overlapping problem of the scraper, the energy is saved, the space at the bottom of a tank is sufficiently utilized, and the utilization efficiency of the resource is improved.