Anti-condensation device for air inlet pipe of fresh air system

The utility model discloses an anti-condensation device for an air inlet pipe of a fresh air system, which is arranged at a condensation section between a fresh air machine and a wall on the air inlet pipe and comprises two adapters sleeved on the condensation section, and a condensation eliminating pipe sleeved outside the condensation section is arranged between the two adapters. Each adapter is provided with a ventilation channel communicated with an inner cavity of the corresponding dew eliminating pipe, the ventilation channel on one adapter is connected with an exhaust outlet of a fresh air machine, and the ventilation channel on the other adapter is connected with an exhaust pipe through a pipeline. The condensation section is sleeved with the condensation eliminating pipe, the condensation section is separated from the indoor environment, and exhaust air with the temperature relatively close to the indoor temperature is introduced into the condensation eliminating pipe through the adapter. The exhaust