Full-face shaft boring machine, boring system, and boring method

A full-face shaft boring machine, comprising a cutterhead structure provided with an outer tapered surface structure protruding in a boring direction, wherein the outer tapered surface structure surrounds an outer circumferential side of a rotation center of the cutterhead structure, and a radial cross section of the outer tapered surface structure gradually decreases in the boring direction;

• at least one receiving port for rock slag to pass through is formed at a taper top of the outer tapered surface structure and runs through the cutterhead structure in the boring direction, and a slag discharging assembly for discharging the rock slag is arranged on a side of the cutterhead structure away from the boring direction,
• wherein an inner tapered surface structure protruding in a direction opposite the boring direction is coaxially arranged with the cutterhead structure and at the rotation center of the cutterhead structure, a radial cross section of the inner tapered surface structure gradually decreases in the direction opposite the boring direction, and an outer circumferential edge of a taper bottom of the inner tapered surface structure is connected to an outer circumferential edge of the taper top of the outer tapered surface structure.