Micro-power denitrification trickling filter

The utility model relates to a micro-power denitrification trickling filter comprising a water distributor, a composite enhanced biological filler and a water plate which are sequentially arranged from top to bottom to effectively remove organic pollutants including nitrogen and the like in water, wherein the composite enhanced biological filler is arranged in a trickling filter main body, a filler in the composite enhanced biological filler is arranged in a layered manner, and the inner diameter of the filler is increased layer by layer from top to bottom to ensure that a carrier is provided for the growth of aerobic microorganisms; and vent holes are formed in the side wall of the trickling filter main body to provide oxygen for the growth of the aerobic microorganisms, and the running cost is reduced by 70% because the vent holes for natural ventilation are used for replacing mechanical aeration needing power consumption. The water plate is used for supporting the composite enhanced biological filler and passing water, and meanwhile, the water plate also can be used for supplying oxygen; and various landscape forms such as gazebos and mushroom shapes can be manufactured on the trickling filter according to surrounding environment requirements, so that the micro-power denitrification trickling filter is beautiful and elegant, is simple in structure, can be moved, and has good economic, biological and social benefits.