Nitrogen circulating cooler

The utility model relates to the technical field of cooling equipment, in particular to a nitrogen circulating cooler which comprises an outer shell. The outer shell comprises a connecting shell A and a connecting shell B, a gas storage tank is arranged at the bottom end of the outer shell, the connecting shell A is fixed to the gas storage tank, and the connecting shell B is rotationally connected with the connecting shell A; a top plate and a bottom plate are arranged at the upper end and the lower end of the inner side of the outer shell correspondingly, a mounting shaft is rotationally connected between the top plate and the bottom plate, a plurality of partition plates are arranged on the mounting shaft in an annular array, and a plurality of containing frames are arranged between every two adjacent partition plates side by side. A plurality of air nozzles are arranged on the connecting shell A side by side, a supporting base is fixed to the side portion of the air storage box, and a nitrogen tank is arr