The invention provides a four-volute-chamber double-outlet self-balancing multi-stage pump. The four-volute-chamber double-outlet self-balancing multi-stage pump comprises a water inlet section, a water outlet section and a secondary water inlet section, wherein the water inlet section, the water outlet section and the secondary water inlet section are arranged on a pump shell, the water inlet section and the secondary water inlet section are symmetrically arranged on the two sides of the water outlet section, a water inlet section inlet with a first preset angle is formed in the water inlet section, a secondary water inlet section inlet with a second preset angle is formed in the secondary water inlet section, a high-pressure outlet and a low-pressure outlet are formed in the water outletsection, guide vanes are arranged between the water inlet section and the water outlet section, return guide vanes are arranged between the water outlet section and the secondary water inlet section,the guide vanes and the return guide vanes are symmetrically arranged on the two sides of the water outlet section, a central shaft is arranged at the center portion of the pump shell in the axial direction, and the guide vanes and the return guide vanes are arranged on the central shaft in a sleeving mode. According to the four-volute-chamber double-outlet self-balancing multi-stage pump, axialmovement of a pump rotor component during starting and the axial pulsation of the pump rotor component during operating are avoided, so that the reliability is effectively improved.