The invention discloses a novel livestock and poultry manure aerobic fermentation tank, which comprises a fermentation tank body, a feeding device, a discharging device, shaftless composite spiral stirring blades, a driving device and a heating coil, wherein the feeding device and the discharging device are connected with the fermentation tank body; the shaftless composite spiral stirring blades are arranged in the fermentation tank body; the driving device is used for driving the shaftless composite spiral stirring blades to rotate; and the heating coil is disposed in the fermentation tank body. The shaftless composite spiral stirring blades comprise a left spiral blade arranged close to the center of the fermentation tank body and a right spiral blade arranged far away from the center ofthe fermentation tank body; the spiral directions of the left spiral blade and the right spiral blade are opposite when the left spiral blade and the right spiral blade are driven by the driving device; a plurality of aeration devices are arranged in the axial direction of the fermentation tank body and are arranged on the same cylindrical surface where the left spiral blade and the right spiralblade are connected. The fermentation tank body integrates aeration, stirring and turning functions, and dead-corner-free ventilation and stirring are achieved.