Compressor pump structure and compressor

A compressor pump structure, comprising:

• an upper flange;
• a lower flange;
• a cylinder sleeve provided between the upper flange and the lower flange;
• a cylinder rotatable about an axis thereof is provided inside the cylinder sleeve;
• a piston slidably arranged inside the cylinder, a volume-variable chamber is formed among the cylinder sleeve, the cylinder and the piston;
• a rotating shaft passes through the piston, an axis of the rotating shaft being eccentrically disposed with respect to the axis of the cylinder with a fixed eccentricity, the rotating shaft is configured to drive the piston and the cylinder to rotate, and the piston is configured to slide within the cylinder while rotating so as to change a volume of the volume-variable chamber,
• wherein the cylinder includes a first cylinder body and a second cylinder body arranged in a step-like manner,
• wherein the cylinder sleeve includes a first step hole and a second step hole arranged in a step-like manner, and
• wherein the first cylinder body being located in the first step hole, and the second cylinder body being located in the second step hole.