Fluidized coal mining method utilizing self-energy storage of coal seam

A fluidized coal mining method utilizing self-energy storage of a coal seam, comprising following steps:

• developing a mine roadway:
• detecting and determining a buried depth, a size and a dip angle of the coal seam to be mined, delineating different mining zones and a mining sequence;
• and drilling the coal seam through a well drilling system to form a lifting shaft;
• developing a roadway system along a bottom of the lifting shaft, and installing a ground equipment system on a ground;
• and wherein the roadway system is arranged below the coal seam;
• uncovering coal actively:
• sending an explosive to the roadway system through the lifting shaft, sealing a top of the lifting shaft, detonating the explosive to disturb the coal seam so as to trigger a dynamic phenomenon of coal and gas outburst, and treating a fluid mixture formed by explosion through the ground equipment system;
• mining coal in fluidization:
• according to a position of an outburst hole formed after the uncovering coal actively, determining a position of a coal-mining drilling well on the ground, drilling the coal-mining drilling well to an upper part of the roadway system through the well drilling system and stopping, forming a mining zone;
• and mining the mining zone;
• backfilling a goaf:
• after a first mining zone is mined, forming the goaf, and backfilling the goaf by the ground equipment system to enable the goaf and the roadway system to form a gangue backfill zone;
• and
• after the backfilling is completed, repeating above steps, and mining a next adjacent coal mining zone in turn until a mining of a whole coal seam is completed.