Efficient cantilever type heading machine

The utility model discloses an efficient cantilever type heading machine which comprises a cutting assembly, and the cutting assembly comprises a rotary table, a support, a rotating shaft, a first hydraulic telescopic rod, a cutting arm, a lug seat, a support, a motor, a speed reducer, a second hydraulic telescopic rod, a cutting head, cutting teeth and a mounting seat. A support is fixedly connected to the upper surface of the rotary table, a rotating shaft is installed on the inner side wall of the support, a first hydraulic telescopic rod is installed on the outer side wall of the rotating shaft, a cutting arm is rotationally connected to the inner side wall of the support, and a lug seat is fixedly connected to the upper surface of the cutting arm. A drill bit or an anchor rod is mounted through the mounting seat, the cutting arm is lifted through the first hydraulic telescopic rod, and the cutting head is rotated through the motor and the speed reducer, so that the inner wall of the annular tunnel is per