NOVELTY - Vertical-tank type fermentation machine comprises a tank body of a fermentation machine arranged on a support, a feed system, and a discharge system. A mixing and drive system (6) is arranged in the tank body of a fermentation machine. A feed inlet (7) is arranged above the tank body of a fermentation machine. A discharge outlet is arranged at the bottom of the tank body of a fermentation machine. The tank body of a fermentation machine is provided with an oxygen system, which is provided with oxygen by the external environment. A heat insulation system is arranged outside the tank body.    USE - The vertical-tank type fermentation machine is useful for small and medium-sized enterprises in treating organic wastes, fermenting and producing organic fertilizers.    ADVANTAGE - The fermentation machine: is simple, and easy to install; has good sealing property, low operating cost, less operating problems and low production costs; and is environmental friendly.    DETAILED DESCRIPTION - Vertical-tank type fermentation machine comprises a tank body of a fermentation machine arranged on a support, a feed system, and a discharge system. A mixing and drive system (6) is arranged in the tank body of a fermentation machine. A feed inlet (7) is arranged above the tank body of a fermentation machine. A discharge outlet is arranged at the bottom of the tank body of a fermentation machine. The tank body of a fermentation machine is further provided with an oxygen system, which is provided with oxygen by the external environment. A heat insulation system for providing heat source to achieve fast material fermentation is arranged outside the tank body of a fermentation machine. The discharge outlet of the tank body of a fermentation machine comprises an outlet of materials after fermentation and an outlet of material during fermentation. The outlet of material during fermentation is connected with the feed system. The feed inlet is connected with the feed system.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the vertical-tank type fermentation machine.    Material preparation stand (1)    Material blending part (2)    Material lift (3)    Mixing-d drive system (6)    Feed inlet (7)