Rectifying kettle for 3-fluorobenzotrifluoride

The rectifying still mainly comprises a main body mechanism, a cleaning mechanism and a lifting mechanism, the main body mechanism comprises a still body, a discharging pipe fixedly communicated with the bottom of the still body, a still cover connected with the still body and a feeding pipe communicated with the still cover, the cleaning mechanism is connected with the still body, and the lifting mechanism is connected with the still body. The cleaning structure comprises a rotating motor fixedly connected with the top end of the kettle cover and a cleaning assembly arranged in the kettle body, and an output shaft of the rotating motor is fixedly connected with the cleaning assembly; the cleaning assembly comprises a rotating shaft fixedly connected with an output shaft of the rotating motor, a first supporting rod and a plurality of second supporting rods which are fixedly connected with the surface of the rotating shaft, and a brushing piece connected with the ends, away from the rotating shaft, of the fir