Automatic feeding and discharging flotation machine

The invention discloses an automatic feeding and discharging flotation machine. The flotation machine comprises a flotation machine main body, wherein a feeding chute is formed in one side of the flotation machine main body, a mounting frame is mounted on one side of the feeding chute, a topless screw feeder is mounted on one side of the mounting frame, a digging mechanism is arranged above the screw feeder, a discharging bin is mounted on the inner wall of one side of the flotation machine main body, a second screw is connected to the output shaft end of a fourth motor and in threaded connection with a gate plate, and a discharging port is formed in the side, away from the feeding chute, of the flotation machine main body. According to the flotation machine, operation during feeding is automatic, the feeding quantity of a digging hopper is consistent each time, control of the minerals is convenient, control of added chemicals is convenient for people, and the chemicals are used to thegreatest extent; the gat