The invention relates to the technical field of
tap water filtering devices, in particular to a
tap water graded filtering device for a municipal
tap water plant, which comprises a motor, a first water pump, a second water pump, a filtering box body, a cleaning box, a movable hole, a filtering cover, a cleaning rod and a first mounting plate. The surface of the first mounting plate is provided with a first rotating shaft, a first
dirt blocking piece is arranged on the surface of the first rotating shaft, a first groove is formed in one side of the first
dirt blocking piece, a first filtering net is arranged in the first groove, and an elastic net is fixedly connected to one side of the first
dirt blocking piece. Through the arrangement of the filtering box body, the cleaning box, the movable hole, the filtering cover, the cleaning rod, the first dirt blocking piece, a second dirt blocking piece, the first groove, a second groove and a pulling plate, the situation that in the prior art, floating dirt and
silt can only be removed through a filtering net is avoided, the filtering and treatment effects on the floating dirt and the
silt are enhanced, and the device is high in filtering efficiency and good in
treatment effect.