Coal mine underground mining blast hole plugging mechanism

The invention discloses a coal mine underground mining blast hole plugging mechanism. The sealing and fixing capability of the plugging mechanism can be improved by utilizing the impact force during blasting, so that the situation that the plugging mechanism is ejected during blasting so as to influence the blasting effect is avoided. The coal mine underground mining blast hole plugging mechanismis characterized in that one end of a main body barrel is connected with a fixing seat; a guide sleeve is connected with the other end of the main body barrel; the guide sleeve is of a reducing structure; a plurality of layered partition plates sleeve the main body barrel; the layered partition plates are arc-shaped plates protruding towards the direction of the guide sleeve and are arranged at equal intervals; a plurality of nail storage grooves are annularly formed in the layered partition plates at equal distances; limiting blocks are arranged at the positions, close to the main body barrel, of the groove walls of