Rotary transfer stacker crane

The utility model discloses a rotary transfer stacker crane which is arranged in three directions of a bucket bearing platform, a bearing plate bearing platform and a rotary platform where an assembly platform is located. The water bucket bearing platform comprises a conveying rail at the bottom and a push plate part located on the side edge, the empty water buckets pass through the conveying rail through external equipment, the push plate part is located at the side edge position where the conveying rail is located, and the conveyed empty water buckets are pushed to the other end of the water bucket bearing platform through the push plate part. The surface of the whole bucket bearing platform is fully loaded with empty buckets; and the bearing plate bearing platform is located on the opposite side of the bucket bearing platform and used for bearing the bearing plates, and the multiple sets of bearing plates are stacked up and down. And the rotating platform is adopted to achieve mutual switching of the defle