The application of the invention relates to a household permanent-magnet dough mixer capable of replacing manpower. The dough mixer is not provided with a driving rod, is quite easy to clear and sort, can be soaked in water for washing, and is capable of realizing full-sealed operation. The dough mixer is characterized in that magnets formed by same-polarity structures are arranged in a flour and water container; under the rotation effect of magnetic disks with paired heteropoles and the resistance coaction of flour and water, magnets with single-polarity structures jump and overturn in a complicated force environment with magnetic forces and combined viscous force of flour and water, i.e., the magnets with single-polarity structures jump and overturn independently in flour and water, so that dough mixing is finished.