Lifting type pipe rotating device and system

The utility model provides a lifting type pipe rotating device and a lifting type pipe rotating system, and relates to the technical field of pipeline assembly welding construction equipment. The pipe rotating mechanism is arranged on the lifting mechanism; the pipe rotating mechanism comprises a plurality of rotating wheels arranged at intervals in the first direction, a to-be-rotated part is placed on the rotating wheels, and the rotating wheels are driven to rotate, so that the to-be-rotated part can rotate around the central axis of the rotating wheels. According to the technical scheme, the rotating wheels can support the part to be rotated at the same time, and any one or more of the rotating wheels is driven to rotate, so that a rotating friction force can be generated between the rotating wheel and the part to be rotated to enable the part to be rotated to rotate to the position where the part to be rotated is welded with another adjacent pipeline. Therefore, the rotating function of the device is qui