One-way flow air supply type heat dissipation device of rail-roof-free air duct in rail-mounted area of subway station

The invention relates to a one-way flow air supply type heat dissipation device without a rail top air duct in a subway station rail-mounted area. The one-way flow air supply type heat dissipation device comprises a one-way flow air supply device and the station rail-mounted area. The one-way flow air supply device comprises an air supply outlet formed in one side of the rail-mounted area, the air supply outlet is connected with a fresh air well through a fresh air duct, and an air supply fan is arranged in the fresh air duct; the station rail-mounted area comprises a tunnel top, a station stopping train and a long and narrow fluid channel formed between the tunnel top and the station stopping train. Heat released by the train condenser is blown away in time, the temperature of air on the upper portion of the rail-mounted area train is effectively controlled, the stopping and jumping probability of the train condenser is reduced, the running stability of equipment and the train is improved, the service life o