Electric power metering box with good moisture-proof effect

The utility model belongs to the technical field of electric power equipment, and particularly relates to an electric power metering box with a good moisture-proof effect, which comprises an equipment main body, a door body arranged on the front surface of the equipment main body, an alarm arranged at the upper end of the equipment main body, a fire extinguishing agent box arranged inside the equipment main body, a pressure cylinder arranged on one side of the fire extinguishing agent box, and a pressure sensor arranged on the other side of the pressure cylinder, the lower end of the pressure cylinder is connected with a liquid distribution pipe, and a piston is arranged in the pressure cylinder. Through the arrangement of the pressure cylinder, the nozzle, the turntable, the rectangular block, the fire sensor, the screw rod, the connecting block, the sensor, the guide rod and the drying agent box, the electric power metering box achieves the automatic fire extinguishing effect in the use process, effectively