Anti-explosion small lithium battery

The utility model discloses an explosion-proof small lithium battery which comprises an explosion-proof box, a square connecting block is fixedly installed on one side of the explosion-proof box, two cylindrical grooves are symmetrically reserved in the square connecting block, a square groove is formed in the other side of the explosion-proof box, two first grooves are reserved in one side of the upper end face of the explosion-proof box, and two second grooves are reserved in the other side of the explosion-proof box. A limiting column is fixedly installed on the lower end face of the first handle, a moving groove is formed in the limiting column, a wedge-shaped clamping block is slidably connected into the moving groove, a handle is fixedly installed on one side of the upper end face of the wedge-shaped clamping block, and a first spring is fixedly installed at one end of the wedge-shaped clamping block; two second grooves are reserved in the other side of the upper end face of the anti-explosion box, inse