A three-
coal-mining-
machine efficient mining method includes the steps that firstly, an air way, a
machine way and a
cut hole are formed, notches are formed in the two ends of the
cut hole in advance, and the length of the notches is not smaller than the sum of the length of a single-drum
coal mining
machine and the length of a double-drum
coal mining machine; the front portions of the two ends of the working face are beveled, fed and pre-
cut to form machine nests through the two single-drum
coal mining machines, a roof is supported through the lagging supporting support and the timely supporting support, and the requirement for the width of a roadway can be lowered by adopting the beveled
feeding mode of the single-drum
coal mining machines; in addition, the single-drum
coal mining machines on the two sides perform pre-
cutting operation at the two ends of the working face and the double-drum coal mining machine perform coal
cutting operation in the middle of the working face synchronously, and after the double-drum coal mining machine enters a left-end or right-end machine
nest, the double-drum coal mining machine directly performs reverse beveling feeding for next coal
cutting, so that the mining efficiency of the working face is improved; the working face
arrangement number is reduced, the labor time of workers is shortened, and the
economic benefits of enterprises are increased.