Explosion-proof capacitor

The invention relates to the technical field of power capacitors, in particular to an explosion-proof capacitor which comprises capacitor bodies, an explosion-proof mechanism and an early warning facility, the explosion-proof mechanism comprises a first round box with an opening in the top, a top cover is arranged in the first round box, and two through holes are formed in the top cover; the capacitor bodies are connected in parallel and then are connected with two wiring terminals, the wiring terminals penetrate through the corresponding through holes and are fixedly connected with the corresponding through holes, and four springs arranged in a circle are fixedly installed on the inner wall of the bottom of the first round box. And the top ends of the four springs are fixedly provided with a second round box with an opening in the top. Positioning holes are formed in the bottom surfaces of the first round box and the second round box, the capacitor bodies are composed of bent iron sheets, the iron sheets are