Partitioned cutting type heading machine for tunnel face

The utility model discloses a tunnel face partition cutting type heading machine. Relates to the field of tunnel construction. Comprising a shell, a rotating disc, a telescopic sleeve, a tool arm swing control oil cylinder and a plurality of cutting tool arms are arranged in the shell, the rotating disc is rotationally and movably arranged in the shell, the section of the rotating disc is in an n shape, the center line of the rotating disc and the center line of the shell are located on the same axis, and a containing opening of the rotating disc faces the front of the shell. The telescopic sleeve is movably located in the containing opening of the rotating disc, the tool arm swing control oil cylinder is located outside the containing opening of the rotating disc, and a piston rod of the tool arm swing control oil cylinder is used for stretching into the containing opening of the rotating disc and is connected with the telescopic sleeve. The first arm body and the second arm body are connected in the tool ar