Heading machine main machine and heading machine

The invention belongs to the technical field of heading equipment, and particularly discloses a heading machine main machine and a heading machine. The heading machine main machine comprises a cutter head and a shield body, a pushing mechanism is hinged to a front partition plate of the shield body through a universal hinge structure, the pushing mechanism comprises a pushing body and a pushing driving device used for driving the pushing body to move forwards so as to push a tunnel face, and the cutter head is provided with an avoiding hole used for avoiding the pushing body. The heading machine comprises the heading machine main machine. Universal swing of the pushing mechanism is achieved through the universal hinge structure, the pushing body pushes the tunnel face at different angles, reverse thrust in any inclined upward/downward/leftward/rightward directions is provided for the shield body, and the shield body is assisted in achieving posture adjustment in different directions. And if the shield is bloc