Abstract: The TDS dry cleaning machine which works with X-ray identification separation technique is compact in size, simple in system and requires no water or medium in operation. After size classification of the run-of-mine coal underground, the coarse coal is directly fed into the TDS separator and the cleaned product is hoisted to surface. The gangue and dirt separated out return back to working face and are thrown into the worked out area by support-stowing machine. The use of the TDS separator can achieve the objective of carrying out green mining strategy and creating favorable socioeconomic benefit because the raw coal quality is improved and there is no need to bring the ganguse out of mine.