Environment-friendly biological composite wastewater treatment device

The utility model discloses an environment-friendly biological composite wastewater treatment device, which belongs to the technical field of wastewater treatment, and adopts the technical scheme that the environment-friendly biological composite wastewater treatment device comprises a bottom plate, four supporting legs are fixedly connected to the bottom of the bottom plate, four supporting columns are fixedly connected to the top of the bottom plate, a settling tank is arranged at the top of the bottom plate, and a settling tank is arranged at the bottom of the bottom plate. A filter bin is arranged at the top of the bottom plate, and a mixing mechanism is arranged at the top of the bottom plate; the mixing mechanism comprises a motor, a connecting plate, an electric telescopic rod, a rotating rod and a plurality of spiral blades, and the bottom of the connecting plate is fixedly connected with the top of the electric telescopic rod. And the direct filtration of the biological composite wastewater easily ca