Over -and -under type bread machine

The utility model relates to an over -and -under type bread machine, including interior bucket and outer bucket, interior bucket sets up in outer bucket insidely, the inside stand that is provided with of interior bucket, inside still is provided with a plurality of intermediate layers, the intermediate layer sets up in the stand side, be provided with the insulating layer between interior bucket lateral wall and the outer bucket lateral wall, still be provided with the spring between interior barrel head portion and the outer barrel head portion, outer bucket upper end still is provided with the lid, the lid is discoid, and lid body surface area keeps unanimous with outer bucket upper end surface area, the lid still is provided with the sealing washer with outer bucket junction, lid both sides position still is provided with the buckle, the lid upper end still is provided with the handle, an outer bucket lower extreme still is provided with the base, and the base upper end is cylindrical shape, and the base