Low-noise dry-type transformer

The invention relates to the technical field of transformers, and discloses a low-noise dry-type transformer which comprises a transformer body, a mute shell is installed on the outer wall of the transformer body, the mute shell comprises a bottom shell and a top shell which are fixed to each other through matching of flanges and bolts, the transformer body is installed in the bottom shell and the top shell, and an installation frame is installed on the bottom face of the bottom shell; the bottom shell and the top shell are installed outside the transformer body, external air is sprayed out through the rectangular pipe, the air outlet pipe and the air outlet head in sequence by the exhaust fan, the sprayed air enters the silencing pipes on the bottom shell and the top shell, the air drives noise generated by the transformer body to enter the silencing pipes, and silencing is conducted through the silencing holes; and meanwhile, air drives heat in the bottom shell and the top shell to enter the cavity through