Stirring device of uniform-mixing large-volume radioactive storage tank

The utility model relates to the field of spent fuel post-treatment, in particular to a stirring device of a uniform mixing large-volume radioactive storage tank. The device comprises two sets of pneumatic stirring devices arranged in a storage tank and a reverse flow steering pump, the pneumatic stirring device comprises an air supply pipe, a ring pipe and a nozzle; the air supply pipe is connected with the annular pipe, the internal thread pipe joints are symmetrically distributed along the center line of the annular pipe, and two ends of the internal thread pipe are respectively connected with the left nozzle and the right nozzle; the adjacent internal thread pipes are arranged in different directions; the two sets of pneumatic stirring devices are arranged on different reference circles; the nozzles are aligned to the intersection of the elliptical head and the barrel and the middle layer of the storage tank; in the reverse flow steering pump, a driving nozzle and a diffuser are coaxially arranged, the dr