The invention discloses a redirection drainage type
sewage treatment combined filler, which belongs to the field of combined fillers, and is characterized in that an air inflation and suction processis circularly carried out in a hollow soft sleeve, and a pair of arc plates is attracted by a magnetic ball to rotate
clockwise and anticlockwise, so that the orientation of a
water flow channel formed by the pair of arc plates is continuously changed; therefore, the flow direction of water flowing through a
biofilm culturing disc is changed,
water flow impact in all directions is caused to the
biofilm, falling of the aged
biofilm is promoted, meanwhile, the falling aged biofilm can flow out of the biofilm culturing disc rapidly, blockage is not prone to being formed in the biofilm culturing disc, and in combination with the driving effect of the arc plate on the rotating
rope, a
hydroformylation vinylon filament bundle is stirred by a rotating
rope, an internal gap of the hydroformylationvinylon filament bundle is changed, the flow of
sewage in the
hydroformylation vinylon filament bundle is promoted, the aged
biological membrane is further enabled to quickly flow out from the insideof the biofilm culturing disc, and a combined filler which is not easy to block and can be continuously and efficiently degraded is provided for
sewage treatment.