Sealed tank body of sealed horizontal type aerobic fermentation tank

The utility model discloses a sealed tank body of a sealed horizontal type aerobic fermentation tank. The sealed tank body comprises a barrel body which is formed by coaxially arranging a feeding fixed end cover, a middle rotary barrel body and a discharging fixed end cover, wherein the two ends of the middle rotary barrel body are inserted into the feeding fixed end cover and the discharging fixed end cover respectively; a sealed sleeve made of polyurethane is arranged between the outer wall of the middle rotary barrel body and the inner wall of the feeding fixed end cover, and a sealed sleeve made of the polyurethane is arranged between the outer wall of the middle rotary barrel body and the inner wall of the discharging fixed end cover; baffles or baffling blocks for limiting the positions of the sealed sleeves are arranged on the end parts of the feeding fixed end cover, the discharging fixed end cover and the middle rotary barrel body; a spiral feeding plate and a reinforcing rib are arranged on the inne