Novel dust filter

The utility model relates to the technical field of dust filtration, and discloses a novel dust filter which comprises a rectangular filter body, a primary filtering mechanism, a secondary filtering mechanism and a tertiary filtering mechanism are arranged on the filter body, the secondary filtering mechanism comprises a non-woven fabric filter screen, and the tertiary filtering mechanism comprises a neutral filter screen. The left side wall surface of the filter body is hermetically connected with an air inlet pipe, the right side wall surface of the filter body is hermetically connected with an air outlet pipe, and the primary filtering mechanism comprises a filtering plate. In the using process, air to be filtered is discharged into the filter body through the air inlet pipe, the air entering the filter body is filtered through the filter plate, dust in the air is blocked by the filter plate, in addition, a power source of the driving motor can be turned on, and the dust in the air can be filtered through