The invention discloses an efficient mining method for a long-wall type thin
coal seam and a medium-thickness
coal seam, and relates to the technical field of
coal mining. The method comprises the following steps that a
coal mining working face is arranged; coal breaking is carried out through a continuous
coal mining machine, wherein a roller of the continuous
coal mining machine is lifted, and is
cut into a coal body, the roller is from top to bottom until reaching a bottom plate, a top plate and the bottom plate are flat to complete one-knife
cutting of coal, then the roller is lifted again, and
cutting is circularly and repeatedly carried out
cutting until the roller reaches the end part of another roadway to complete one-cycle cutting of the working surface; the coal is loaded by means of the continuous coal mining
machine; the coal is conveyed; supporting is carried out, wherein a shield type self-moving hydraulic support is used for working face supporting, and when the shield type self-moving hydraulic support is propelled and moved in the roadway direction, the top plate is supported by two hydraulic supports in one supporting unit, and another hydraulic support descends and moves forward; and a goaf is treated. According to the method,
gangue is not
cut in the 0.8-1.5 m coal seam, the coal cutting speed reaches 10-20 m / min or above, the requirement for the thickness of the coal seam is met, and efficient mining and high-speed propelling are guaranteed.