Power management equipment of coal mine monitoring system

A coal mine monitoring system power management device disclosed by the present invention comprises a sleeve shell, a supporting structure is arranged below the sleeve shell, the supporting structure comprises a bottom plate arranged below the sleeve shell, the top end of the bottom plate is fixedly provided with a plurality of connecting pieces, and the top ends of the connecting pieces are rotatably connected with a supporting frame. And magnet rings are installed at the top ends of the supporting frames correspondingly, a third through cavity is formed in the side edge of the bottom plate in a penetrating mode, and a connecting rope body is arranged in the third through cavity. The bottom plate, the third through cavity, the connecting rope body, the grip and the first through cavity are arranged below the sleeve shell, when the grip is stressed during use, the connecting rope body at the bottom end of the sleeve shell is pulled upwards under the action of the first through cavity, the second through cavity