Environment-friendly screening device for garbage treatment

The utility model relates to the technical field of garbage treatment, in particular to an environment-friendly screening device for garbage treatment, which comprises a working box, a working cavity is arranged in the working box, a feeding port is arranged at the top end of the working cavity, a multi-stage screening device is arranged in the working cavity, and the multi-stage screening device comprises a screening plate and a filtering ring. A sieve plate is arranged above the working cavity, a first discharging opening is formed in the position, located at the top end of the sieve plate, of the right side wall of the working cavity, a first discharging control valve is arranged in the first discharging opening, a discharging pipe is arranged at the position, corresponding to the first discharging opening, of the right side wall of the working box, and a stirring device is arranged at the top end of the working cavity; and through the arrangement of the multi-stage screening device, classified screening c