The utility model provides a steel rotary latch which comprises a lock box, a mounting plate, a rotary structure, a connecting
handle, a rotary
handle and a positioning structure, the mounting plate is fixedly mounted on the outer side of the lock box and fixedly mounted on a door plate, and the rotary structure is mounted on one side in the lock box; the connecting
handle is rotationally installed on the outer side of the rotating structure, the rotating handle is fixedly installed on the top of the connecting handle, and the positioning structure is fixedly installed on the other side in the lock box. Due to the arrangement of the rotating structure, the rotating handle and the positioning structure, the risk of misoperation is low, operation is convenient, locking stability is high, and external interference is not likely to happen.