Rapid fermentation liquor filtering device

The utility model discloses a fermentation liquor rapid filtering device which comprises a stirring assembly and a filtering assembly installed inside a tank body, the filtering assembly utilizes a hollow fiber filter membrane structure to filter fermentation liquor, and filtrate is led out through a discharging pipe. The stirring assembly comprises a stirring rod and a stirring paddle which are used for stirring the fermentation liquid. According to the device, the built-in stirring assembly is used for stirring fermentation liquor, so that the flow rate of the fermentation liquor in the tankbody is increased, thalli are prevented from being deposited and piled on the surface of the filter membrane, micropores of the filter membrane are prevented from being blocked, and the utilization rate of the fiber filter membrane is increased. Besides, the fermentation liquor flows very actively and can be in full contact with air, so that the dissolved oxygen content of the fermentation liquoris increased, the autolys