Sound-insulation ventilation system for transformer substation

The invention relates to a sound-insulation ventilation system for a transformer substation. The sound-insulation ventilation system comprises an air inlet tank, an air exhaust tank, a ventilation pipeline, a fan and a sound isolation door, wherein the air exhaust tank and the air inlet tank are used for communicating the outside and the inside of the transformer substation, the fan is arranged in the transformer substation and is connected with the air exhaust tank and the air inlet tank through the ventilation pipeline , the sound insulation door is arranged on a wall body of the transformer substation, and a sound-adsorbing material layer is arranged on the wall body of the transformer substation. Compared with the prior art, the sound-insulation ventilation system disclosed by the invention has the advantages of stable ventilation performance, good sound insulation effect and the like.