High-flow permanent magnet shielding booster pump

The utility model relates to a high-flow permanent magnet shielding booster pump which comprises a pump body with a pump body input port and a pump body output port, and is characterized in that an inner cavity of the pump body is divided into a first pump cavity, a second pump cavity, a water inlet cavity and a water outlet cavity, the first pump cavity and the second pump cavity are arranged in parallel, the first pump cavity is provided with a first input channel and a first output channel, and the second pump cavity is provided with a second input channel and a second output channel. The second pump cavity is provided with a second input channel and a second output channel; a first stator and a first rotor of the first direct-current permanent magnet motor are arranged in a mutually isolated mode, the first rotor is located in the first pump cavity, and a first impeller is installed on the first rotor. A second stator and a second rotor of the second direct-current permanent magnet motor are arranged in a