Novel fermentation is with separation device

The utility model relates to a novel fermentation is with separation device, its include fermentation cylinder, lower extreme stretch into be used for in the fermentation cylinder stirring the agitator, lie in the fermentation cylinder top hit formula vapour and liquid separator and tail gas pipe soon, the import of hitting formula vapour and liquid separator soon is linked together through blast pipe and fermentation cylinder, and the gas outlet that hits formula vapour and liquid separator soon is linked together through outlet duct and tail gas pipe, and the liquid outlet that hits formula vapour and liquid separator soon is linked together with the fermentation cylinder through returning the liquid pipe, the blast pipe by the vertical section that is located upper portion with be located the lower part and be unciform bending section and constitute, in the lower extreme of vertical section and bending section all stretched into the fermentation cylinder, the end of bending section was close to the axial d