Rotatable Dust Removal Device

A rotatable dust removal device configured to perform a cleaning operation on a workpiece, comprising:

• an outer housing having a receiving space defined by a surrounding wall and opened at a bottom of the outer housing, and at least two inflow orifices and at least one outflow orifice located at a top of the surrounding wall;
• and
• at least one cleaner head disposed within the outer housing, the at least one cleaner head including a positioning base, a central shaft, a rotatable connection seat, a body, and a plurality of air nozzles;
• wherein the positioning base includes at least one vent port communicating with one of the at least two inflow orifices, two injection ports respectively communicating with the other of the at least two inflow orifices, and two air guiding channels respectively communicating with the two injection ports;
• wherein the central shaft includes an axial hole extending along an axis and communicating with the at least one vent port;
• wherein the rotatable connection seat is rotatably mounted on the central shaft and disposed below the positioning base, the rotatable connection seat including a through hole through which the central shaft extends, and two swirling channels respectively communicating with the two air guiding channels, wherein each swirling channel has an outlet;
• wherein the body is connected to the rotatable connection seat and rotatably mounted at a bottom of the central shaft, the body cooperating with the surrounding wall of the outer housing to define a dust collection channel communicating with the at least one outflow orifice, the body including a central hole coaxially aligned with the axis, a plurality of through holes located at a bottom of the body and respectively communicating with the central hole, and an airflow passage formed by the axial hole and the through holes;
• and
• wherein the plurality of air nozzles are respectively connected to the plurality of through holes of the body, each injector including a spray tube and a nozzle, the nozzle has at least one spray orifice communicating with the dust collection channel;
• wherein when the rotational airflow is pumped from the two air guiding channels into the two swirling channels and ejected from the outlets of the two swirling channels, a rotational torque is generated to drive the rotatable connection seat, the body, and the plurality of air nozzles to rotate synchronously around the central shaft.