Water channel with filtering function

The utility model relates to the field of water channels, in particular to a water channel with a filtering function, the water channel comprises a water channel body, a filtering assembly is arranged in the water channel body, the filtering assembly comprises a first filter screen and a second filter screen which are sequentially arranged in the water flow direction, and the first filter screen and the second filter screen are arranged on the side wall of the water channel body in an up-down sliding mode; a driving assembly for controlling the first filter screen to slide up and down is arranged on the side wall of the canal body; a limiting piece is slidably arranged on the side wall of the canal body, a limiting groove is formed in the second filter screen, and when the limiting piece is in limiting fit with the limiting groove, the second filter screen is located at the bottom of the canal body; a linkage assembly is arranged between the driving assembly and the limiting piece, and when the driving assemb