Fan silencer

The utility model discloses a fan silencer which comprises a pair of silencer shells, a group of silencing filling layers, a limiting filter frame and an adjustable silencing mechanism. And a box body flange is connected between the pair of silencer shells. The set of silencing filling layers are arranged in the silencer shell, and the sides, away from the silencer shell, of the set of silencing filling layers are each sleeved with a limiting filter frame. The adjustable silencing mechanism is arranged in the silencer shell and comprises multiple sets of first silencing plates, multiple sets of second silencing plates are arranged on one sides of the multiple sets of first silencing plates, and the multiple sets of first silencing plates and the multiple sets of second silencing plates are distributed in a staggered mode. According to the fan silencer, the multiple sets of silencing plates are arranged in a staggered mode, the design size of the fan silencer can be reduced under the condition that the silenci