Sludge discharge device based on water treatment

The utility model relates to the technical field of sewage treatment, and discloses a sludge discharge device based on water treatment, which comprises a body and a sewage inlet pipe arranged in the body, the inner side surface of the body is provided with a treatment cavity, the inner side surface of the treatment cavity is fixedly connected with a base, the inner side surface of the base is fixedly connected with a motor, and the motor is fixedly connected with the body. The exterior of the motor is in transmission connection with a gear, the top surface of the gear is meshed with a gear ring, and the inner side surface of the gear ring is fixedly connected with a filter cartridge; according to the sewage treatment device, the filter cartridge, the filter holes, the spiral blades, the gear ring, the gear and the motor are matched with one another, so that sludge and other impurities mixed in the sewage treatment device can be stably filtered during sewage treatment, and the condition that the filter holes a