Efficient and environment-friendly sewage treatment device

The utility model relates to the technical field of sewage treatment, and discloses an efficient and environment-friendly sewage treatment device, which solves the problems that sludge on the current market is not easy to clean and pollutes the environment, and comprises a water inlet, a filter tank is movably connected to the outer surface of the lower end of the water inlet, and a cleaning tank is fixedly connected to the outer surface of one side of the filter tank. A purification tank is fixedly connected to the outer surface of one side of the cleaning tank, an arranged sludge filtering barrel rotates, sludge in the filtering tank can be rolled up in the rotating process, a supporting round rod is fixed to a limiting circular ring through a screw rod, water in the purification tank is guided into the supporting round rod through a water conveying hose, and the water in the purification tank is purified; the surface of the sludge filter cartridge is flushed through the flushing nozzle, and sludge on the s