Screening and impurity removing device based on construction waste recycled concrete

The screening and impurity removing device based on the construction waste recycled concrete comprises an impurity removing pipeline, a feeding port is formed in one side of the outer wall of the impurity removing pipeline, one end of the impurity removing pipeline is connected with an impact idler wheel through an installation motor, and a detachable bottom plate is installed on one side of the outer wall of the impurity removing pipeline. A first fan is mounted in the middle of the outer wall of the impurity removal pipeline by arranging a ventilation pipeline, and a right-angle impact plate is mounted on one side of the inner wall of the impurity removal pipeline by arranging a torsion spring. Compared with the prior art, the construction waste impurity removal device has the advantages that the construction waste is subjected to impurity removal treatment through the first draught fan, the second draught fan and the impurity removal pipeline in the inclined state, the principle that wind can blow light wa