Underground device for storage batteries of communication base station brick-concrete machine room

The utility model discloses an underground device for storage batteries of a communication base station brick-concrete machine room. The underground device comprises a battery compartment, a cabinet, a cover plate and an underground pit, wherein the battery compartment is 3.5 M long, 1.5 M wide and 2 M high and formed by welding and fixation of channel steel and angle steel, and all materials adopt galvanized steel structures; an entrance door is formed above the battery compartment, edges of the entrance door bulge by 10 CM relative to the top of the battery compartment, and a door is installed on the entrance door; a vertical ladder is arranged in the battery compartment at the entrance door; a wire entrance hole and air holes are formed in the upper part of the battery compartment, are fully welded with round tubes and extend to the cabinet; the cabinet is erected on the battery compartment, and the wire entrance hole and the air holes are located inside the cabinet; the cover plate is located above the ba