Ozone-less negative ion generator

The utility model relates to an ozone-less negative ion generator which comprises a fan, a box body and a box cover. One end of the box body is provided with an air inlet hole, and the fan is arranged outside the air inlet hole; a pore plate is arranged inwards in the air inlet hole, and the edge of the pore plate tightly clings to the inner wall of the box body; the pore plate is stuck to the end surface of one end of a grid-shaped air duct; the outer wall of the grid-shaped air duct is stuck to the inner wall of the box body; the other end of the box body is provided with the box cover, and an air outlet hole is arranged on the box cover; and negative ion paint is coated on the inner wall of the box body, the inner wall of the box cover, the front side and the back side of the pore plate and all surfaces of the grid-shaped air duct. The air passes through the holes of the fan, the air inlet hole and the pore plate as well as the air outlet holes of the grid-shaped air duct and the box cover, is blown to a r