Viscose prefilter

The utility model relates to a viscose prefilter, which is characterized by comprising two prefilters (1), wherein a filtering iron railing (2) is fixed on the top wall in each prefilter (1), a discharge outlet (5) in the top of the prefilter (1) is coated by the filtering iron railing (2), the discharge outlets (5) of the two prefilters (1) are both connected with a discharge pipe (6) which is connected with an automatic filtering machine, feed inlets (3) are formed in the bottom of the prefilters (1) and are movably connected with a feed pipe (4) in a threaded way or in other manners, so that the feed pipe (4) is detachable. The viscose prefilter can remove large particular impurities in viscose, the continuity of production can be guaranteed, and the workload of workers can be reduced.