An orbiting scroll (2) is formed by attaching to an orbiting scroll base (18) in a removable manner an orbiting scroll main body (17), wherein spiral orbiting wraps (6) are provided on both surfaces of a base plate part (16), said orbiting scroll main body being attached in a central receiving hole (19) from one surface of the orbiting scroll base. A stationary scroll (5) is provided with spiral stationary wraps (50) on one surface of an end plate (20), and the stationary wraps (50) are provided so as to mesh with the orbiting wraps (6) and sandwich therebetween the orbiting scroll (2). Crankshafts (3) are provided at multiple locations in the circumferential direction of the orbiting scroll base (18), and cause eccentric shaft parts (8), on which the orbiting scroll base (18) is retained via orbiting bearings (29), to rotate synchronously, thereby causing the orbiting scroll (2) to rotate with respect to the stationary scroll (5).