Automatic fire extinguishing device for power distribution meter box

The invention relates to the technical field of power distribution meter boxes, in particular to an automatic fire extinguishing device for a power distribution meter box, which comprises an electric box comprising a box body, an air switch arranged in the box body, a home-entry wire connected with the air switch, and an air hole formed in the box body; the fire extinguishing mechanism comprises a water-based fire extinguisher and a partition plate which are arranged in the box body, a fire extinguishing assembly connected with the water-based fire extinguisher, an intermittent assembly connected with the fire extinguishing assembly, an adapter block connected with the intermittent assembly, a rotating assembly connected with the adapter block, and an abutting assembly arranged on the rotating assembly; according to the fire extinguishing box, the interior of the box body can be cooled or extinguished through the fire extinguishing assembly, and the partition plate can be driven to descend through the fire ex