A portable universal type reamer is characterized in that the portable universal type reamer comprises auxiliary wrenches, a rotating lever, a rearming cutter, a threaded rod, springs, pin positioning holes and positioning pins, wherein the lower ends of the two auxiliary wrenches are hinged to the two ends of the rotating lever, and the two ends of each spring are connected with the upper end of each auxiliary wrench and the middle portion of the rotating lever. The upper portion of the threaded rod is provided with threads, and the lower portion of the threaded rod is provided with the cone-shaped rearming cutter. The upper portion of the threaded rod is provided with one to five pin positioning holes arranged in the vertical axis direction. The threaded rod is in threaded connection with the rotating lever. One end of each positioning pin is clamped in a groove in the rotating lever, and the other end is inserted in each pin positioning hole on the threaded rod. The portable universal type reamer has the advantages that the design is universal, therefore troublesome operations such as replacing a tool bit and adjusting the angle of a blade are omitted; the weight is light, and the carry and use is convenient; the cost is low, the portable universal type reamers can be allocated to maintenance teams or groups, simultaneous operation can be performed on every spot and electric pole, and the efficiency can be improved.