To provide a ventilation pipe for use in a soundproof chamber excellent in soundproofing effect, and to provide a soundproof ventilation structure using the ventilation pipe.

The ventilation pipe 1 is constructed by circumferentially arranging an acoustic member 3 on the periphery thereof, and exposing the acoustic member 3 to an upper inner surface of the pipe via a mesh structure 1a formed of a plurality of pores. Then, the ventilation pipe 1 thus constructed is embedded in a soundproof wall 4, and therefore the soundproof ventilation structure ensures soundproof effect of the ventilation pipe intrinsically. Meanwhile, the ventilation pipe 1 has a lower inner surface 1b which is the same as that of a conventional pipe structure 1b, and therefore the ventilation pipe 1 itself is embedded in the structure with a downward pitch toward an outside wall of the soundproof wall, which enables quick draining of condensation liquid water, rainwater, etc., outdoors.