A method for manufacturing an electrified air filter for an intake system of an engine of a vehicle; the manufacturing method comprises the steps of: manufacturing an outer reinforcement mesh, which is made up of a plurality of weft wires and a plurality of warp wires interlaced with one another; manufacturing an inner reinforcement mesh, which is made up of a plurality of weft wires and a plurality of warp wires interlaced with one another; manufacturing a filtering material panel; placing the reinforcement meshes (12, 13) on opposite surfaces of the filtering material panel, so as to form a unit; bending in a wave shape the unit made up of the filtering material panel enclosed between the reinforcement meshes (12, 13); and coupling to a peripheral frame the wave-shaped unit made up of the filtering material panel enclosed between the reinforcement meshes (12, 13); the manufacturing method is characterized in that it comprises the further steps of: before manufacturing the outer reinforcement mesh, externally coating the warp wires or the weft wires of said outer reinforcement mesh with an outer insulation made of an electrically insulating material; placing two successions of collectors, each constituted by a rectangular plate of conductive metal material and electrically insulated from one another, at the opposite ends of the outer reinforcement mesh and in the area of the ends of the warp wires or of the weft wires; and welding each collector to the ends of the warp wires or weft wires; wherein in each succession of collectors between each collector and the adjacent collectors there is an empty space, which determines an electrical insulation. manufacturing an outer reinforcement mesh, which is made up of a plurality of weft wires and a plurality of warp wires interlaced with one another; manufacturing an inner reinforcement mesh, which is made up of a plurality of weft wires and a plurality of warp wires interlaced with one another; manufacturing a filtering material panel; placing the reinforcement meshes (12, 13) on opposite surfaces of the filtering material panel, so as to form a unit; bending in a wave shape the unit made up of the filtering material panel enclosed between the reinforcement meshes (12, 13); and coupling to a peripheral frame the wave-shaped unit made up of the filtering material panel enclosed between the reinforcement meshes (12, 13); the manufacturing method is characterized in that it comprises the further steps of: before manufacturing the outer reinforcement mesh, externally coating the warp wires or the weft wires of said outer reinforcement mesh with an outer insulation made of an electrically insulating material; placing two successions of collectors, each constituted by a rectangular plate of conductive metal material and electrically insulated from one another, at the opposite ends of the outer reinforcement mesh and in the area of the ends of the warp wires or of the weft wires; and welding each collector to the ends of the warp wires or weft wires; wherein in each succession of collectors between each collector and the adjacent collectors there is an empty space, which determines an electrical insulation. before manufacturing the outer reinforcement mesh, externally coating the warp wires or the weft wires of said outer reinforcement mesh with an outer insulation made of an electrically insulating material; placing two successions of collectors, each constituted by a rectangular plate of conductive metal material and electrically insulated from one another, at the opposite ends of the outer reinforcement mesh and in the area of the ends of the warp wires or of the weft wires; and welding each collector to the ends of the warp wires or weft wires; wherein in each succession of collectors between each collector and the adjacent collectors there is an empty space, which determines an electrical insulation.