A rotary compressor, comprising: a compression mechanism including a cylinder having a cylinder chamber (C1, C2), a piston accommodated in the cylinder chamber (C1, C2) eccentrically with respect to the cylinder, and a blade arranged in the cylinder chamber (C1, C2) and defining the cylinder chamber (C1, C2) into a first chamber (C-Hp) (C1-Hp, C2-Hp) and a second chamber (C-Lp) (C1-Lp, C2-Lp), at least one of the cylinder and the piston rotating eccentrically as an eccentric rotation body (21, 22); a drive shaft for driving the compression mechanism; a pressing mechanism for bringing a cylinder side end plate, which is provided at one end in an axial direction of the cylinder chamber (C1, C2) and faces an end face in an axial direction of the piston, and a piston side end plate, which is provided at the other end in the axial direction of the cylinder chamber (C1, C2) and faces an end face in an axial direction of the cylinder, close to each other in an axial direction of the drive shaft; a casing for accommodating the compression mechanism, the drive shaft, and the pressing mechanism; and the pressing mechanism being eccentric away from the center of the end plate (26A, 26B) of the eccentric rotation body (21, 22), and the pressing mechanism generating axial-direction pressing force of which center is eccentric away from the center of the drive shaft, characterized in that the compression mechanism has a plurality of discharge ports (45, 46) for discharging fluid compressed in the cylinder chamber (C1, C2) to outside of the compression mechanism are formed in the compression mechanism, and the pressing mechanism generates the axial-direction pressing force of which center is eccentric to the discharge ports (45, 46) away from the center of the end plate (26A, 26B) of the eccentric rotation body (21, 22). a compression mechanism including a cylinder having a cylinder chamber (C1, C2), a piston accommodated in the cylinder chamber (C1, C2) eccentrically with respect to the cylinder, and a blade arranged in the cylinder chamber (C1, C2) and defining the cylinder chamber (C1, C2) into a first chamber (C-Hp) (C1-Hp, C2-Hp) and a second chamber (C-Lp) (C1-Lp, C2-Lp), at least one of the cylinder and the piston rotating eccentrically as an eccentric rotation body (21, 22); a drive shaft for driving the compression mechanism; a pressing mechanism for bringing a cylinder side end plate, which is provided at one end in an axial direction of the cylinder chamber (C1, C2) and faces an end face in an axial direction of the piston, and a piston side end plate, which is provided at the other end in the axial direction of the cylinder chamber (C1, C2) and faces an end face in an axial direction of the cylinder, close to each other in an axial direction of the drive shaft; a casing for accommodating the compression mechanism, the drive shaft, and the pressing mechanism; and the pressing mechanism being eccentric away from the center of the end plate (26A, 26B) of the eccentric rotation body (21, 22), and the pressing mechanism generating axial-direction pressing force of which center is eccentric away from the center of the drive shaft, characterized in that the compression mechanism has a plurality of discharge ports (45, 46) for discharging fluid compressed in the cylinder chamber (C1, C2) to outside of the compression mechanism are formed in the compression mechanism, and the pressing mechanism generates the axial-direction pressing force of which center is eccentric to the discharge ports (45, 46) away from the center of the end plate (26A, 26B) of the eccentric rotation body (21, 22).