Energy storage battery for coal mine

The utility model discloses an energy storage battery for a coal mine. The energy storage battery comprises a shell, a core in the shell and an electrolytic solution, wherein the shell is provided with an explosion-proof structure to discharge gas generated in the shell in time; and explosion-proof structure comprises an explosion-proof hole and an explosion-proof cap, the explosion-proof hole is formed in the shell and used for communicating inside with outside of the shell, and the explosion-proof cap is arranged in the explosion-proof hole and is used for closing the explosion-proof hole when air pressure in the shell is normal and for opening the explosion-proof hole when air pressure in the shell is too high. The energy storage battery for the coal mine, through the explosion-proof structure, has an explosion-proof function, so that safety performance is greatly improved.