Auxiliary sorting and impurity removing system for tobacco leaf fragments

The utility model discloses an auxiliary sorting and impurity removing system for tobacco leaf fragments, which is characterized by comprising a vibrating screen, the outlet end of the vibrating screen is provided with the inlet end of a funnel connecting groove, and the outlet end of the funnel connecting groove is provided with a first conveying belt; one end, deviating from the funnel connecting groove, of the first conveyor belt is provided with an inlet end of a negative pressure air conveying pipeline, an output end of the negative pressure air conveying pipeline is fixedly connected with a tangential blanking device, and an output end of the tangential blanking device is provided with a hemp removing roller device and a second conveyor belt; tobacco leaf fragments can be preliminarily screened through the vibrating screen, the tobacco leaves subjected to preliminary screening can be fed into the tangential blanking device through the first conveying belt, then hemp thread removal, dust crushing and dus