The invention discloses a novel feed mechanical screening machine capable of removing dust. The machine structurally comprises motor installation chambers, a dust removal chamber and a screening chamber. The motor installation chambers are arranged on the two sides of the screening chamber, a first vibration motor is arranged inside the motor installation chamber on the left side, a second vibration motor is arranged inside the motor installation chamber on the right side, the top of the screening chamber is provided with the dust removal chamber, joint between the dust removal chamber and thescreening chamber is provided with an air hole, a first screening plate and a second screening plate are arranged inside the screening chamber, screening holes in the first screening plate are largerthan screening holes in the second screening plate, the first screening plate is connected with the first vibration motor through a screw, the second screening plate is connected with the second vibration motor through a screw, a negative pressure fan is arranged inside the dust removal chamber, a filter is arranged on the top of the negative pressure fan, and the filter is connected with a dustoutlet. By means of the novel feed mechanical screening machine, dust produced during feed screening can be absorbed and filtered away.