Noise insulation ventilator

The utility model relates to the technical field of ventilators, in particular to a noise insulation ventilator which comprises a ventilation pipeline, a sound insulation integration box is arranged on one side in the ventilation pipeline in a sliding mode, and a ventilation fan is arranged in the middle in the ventilation pipeline in a clamped mode. A first sound insulation plate and a second sound insulation plate are arranged in the sound insulation integration box in an up-down sliding mode, a first through hole and a second through hole are formed in the two sides of the sound insulation integration box correspondingly, the forming positions of the first through hole and the second through hole are staggered, and a first micro hole and a second micro hole are formed in the first sound insulation plate and the second sound insulation plate correspondingly; the first micropores and the second micropores are arranged in a staggered manner; first sliding grooves are transversely formed in the two sides of th