Abstract: In order to tackle the problem relating to the poor performance of the coarse coal de-shaling operation,the CXR-2000 intelligent dry cleaning machine is used.Following an introduction to the working principle,structure,and technical features and parameters of the machine,the author makes an analysis of the performance of the machine for separation of coarse coal at Jinfu Coal Mine.Practice shows that the efficiency of the machine is over 98% and the loss of coal in waste is below 2%,demonstrating a remarkable coarse coal de-stoning and upgrading performance.