Impurity removal device for traditional Chinese medicine decoction piece production

One or more embodiments of the specification provide an impurity removal device for traditional Chinese medicine decoction piece production, the impurity removal device comprises a box body, one side of the box body is provided with a charging port, the other side of the box body is provided with a discharging port, the charging port and the discharging port are arranged adjacently, the bottom in the box body is provided with an air blowing assembly, and the air blowing assembly is provided with an air outlet. Material receiving grooves are formed in the two sides of the air blowing assembly, a suction assembly is installed on the upper portion of the box body, a filter screen is installed in the box body and located below the feeding port, a driving motor is installed on the side, opposite to the discharging port, of the box body, and a driving lead screw is installed at the output end of the driving motor; a pushing assembly is installed on the driving lead screw in a threaded transmission mode, and the pus