Adjustable excircle-processing rotating milling cutter

The utility model relates to the technical field of part processing, in particular to an adjustable excircle-processing rotating milling cutter which is used for processing a part excircle. The adjustable excircle-processing rotating milling cutter comprises a blade-adjusting screw, a rotating cutter body, a blade and a presetting cutter bar. The presetting cutter bar is connected with the rotating cutter body. The left side and the right side of the rotating cutter body are respectively provided with a blade cavity which is provided with the blade. The blade-adjusting screw is connected with the side of the blade cavity. The blade is in contact with the front end of the blade-adjusting screw. The adjustable excircle-processing rotating milling cutter is simple, compact and reasonable in structure, fast and accurate in processing, time-saving and labor-saving, small in roughness of a processed part, and stable in quality.