Dewatering and drying treatment device for urban domestic sludge

The utility model discloses a dewatering and drying treatment device for urban domestic sludge. The dewatering and drying treatment device comprises an unloading tube which is provided with upright posts; the bottom of the unloading tube is connected with a spiral discharging machine; the side face of the unloading tube is provided with a kiln high-temperature flue gas connecting pipe; the top of the unloading tube is at least connected with three stirring units from top to bottom; each stirring unit comprises a tube body with the same bore diameter as that of the unloading tube, a blade stirrer is mounted in the tube body, and a grid drain plate is mounted at the bottom of the tube body; and the side face of the tube body of the uppermost stirring unit is connected with a spiral charging machine, the top of the tube body is provided with a gas exhaust pipe, and an induced draft fan is arranged in the gas exhaust pipe. According to the dewatering and drying treatment device for the urban domestic sludge, kiln