Coal mining method for mining ultra-thin coal seam

The invention belongs to the technical field of thin coal seam mining, and particularly provides a coal mining method for mining an ultra-thin coal seam. According to the coal mining method, two coal mining machines with front power and a long-arm box body are adopted as coal mining equipment, push type coal mining is carried out on an ultra-thin coal seam, mining zones are parallel to each other, after one coal mining machine is used for completing coal mining work of one mining zone, the other coal mining machine is used for construction on an adjacent coal body, the other new mining zone is opened, and the coal mining work of the ultra-thin coal seam is completed. And synchronously withdrawing the long-arm box body from the previous mining belt along with the advancing of the excavating work of the new mining belt, and directly butting the withdrawn long-arm box body on the coal mining machine in the new mining belt. According to the method, the transverse shaft drum-type coal mining machine with the small