Pass-type shot blasting machine capable of cleaning impurities on surfaces of shots

The utility model discloses a pass-type shot blasting machine capable of cleaning impurities on the surfaces of shots, which comprises a bearing table and an electric telescopic column, a conveyor belt device is arranged at the top of the bearing table, a shot blasting machine main body is fixed at the top of the bearing table, and a flow guide channel and a net-shaped shot channel are fixed on the inner side of the shot blasting machine main body. The flow guide channel is located on the lower side of the conveying belt device, the bottom of the flow guide channel penetrates through a through hole, the through hole is formed in the top of the net-shaped shot channel, the electric telescopic columns are symmetrically fixed to the two sides of the bottom in the shot blasting machine body, the tops of the electric telescopic columns are connected with striking columns, and a discharging opening is formed in the bottom of the shot blasting machine body. And a collecting box is arranged on the lower side of the d