The invention belongs to the field of fluid machinery, and specifically discloses a high-temperature molten salt pump with a double-outlet and double-volute pump body. The high-temperature molten saltpump is mainly composed of five parts including a double-inlet water inlet section, a centrifugal impeller, a double-outlet pump body, a double-helix rectifier tube and a bearing body, wherein the pump body adopts a centrosymmetric double-outlet structure, so that the problem of imbalance of radial force of a shaft is solved; the flow direction of fluid is guided downwards by the helix rectifiertube, and the pump body is connected with a pumping pipeline by virtue of an automatic coupling device, so that the installation difficulty at a pump station is reduced, the operability of the high-temperature pump is increased, and the technical difficulty of the high-temperature molten salt pump is reduced. The high-temperature molten salt pump has the advantages of the simple structure and easiness in installation and disassembly, and long-time reliable operation of the high-temperature pump can be guaranteed.