Device for feeding air to a compressor of a gas turbine

The device (1) for feeding air to a compressor (3) of a gas turbine comprises a channel (5) housing a cooler (8), and a bypass (12) for diverting a part of the air passing through the channel (5) preventing it from passing through the cooler (8). The bypass (12) comprises at least a duct (13) having an inlet (14) upstream of the cooler (8) and an outlet (15) downstream of the cooler (8), and doors (16) for regulating the air access into the at least a duct (13).