A large amount of coal gangue dumped on the ground of coal mining enterprises not only occupies land resources, pollutes the surrounding environment, increases the cost of enterprises, and even has the possibility of explosion, which needs to be solved as soon as possible. By drilling a super-large bore hole from near the ground coal gangue bin to the underground roadway, using the pre-construction of small bore pilot holes, opening five-stage reaming in one place and four-stage reaming in the second place, and drilling with the positive circulation of mud and the reverse circulation of gas lift by the cone bit, the coal gangue solid waste is drilled into a coal mine with a super-large diameter feeding hole to transport the solid waste to the underground goaf. It can not only solve the environmental pollution caused by the dumping of coal gangue on the ground, but also effectively control the movement and deformation of the surface, and realize the green and sustainable development of coal mines. Through the construction practice of large diameter feeding hole in Beixulou Coal mine of Tenbei Mining area, the construction technology of drilling for large diameter feeding hole is explored, and its mature construction scheme has certain guiding significance for the large diameter drilling project.