The invention relates to the technical field of
air pollution dust removal, in particular to an efficient rotary dust removal device for steel
scrap cutting in a
steelmaking workshop, which comprises a mounting frame, a dust removal box is fixedly connected to the top of the mounting frame, a dust removal pipeline is arranged at the bottom of the dust removal box, a rotating mechanism is arranged at one end of the dust removal pipeline, and the rotating mechanism comprises a communicating
pipe. The top of the communicating
pipe is communicated and fixedly connected to the dust removal pipeline through a first
flange plate; by arranging the rotating mechanism, a second motor is started, an output shaft of the second motor drives a second gear to rotate, the second gear drives a first gear to rotate, the first gear drives a second
flange plate to rotate, the second
flange plate drives a dust removal air
pipe and a dust removal cover to rotate, and the dust removal cover rotates according to needs; and dust can be effectively removed in a rotating
radius area, and whether a crane is lifted to approach or not can be detected through a crane
detector, so that the function of automatically avoiding the lifting crane is realized.