Deicing method with forced circulation for jet engine intake fairing and device for the implementation of said method

The jet engine air intake cowling comprises an air intake lip (6a), a de-icing system (10) and acoustic attenuation means (11). The acoustic attenuation means are constituted by separate islets (11a) each formed from a sandwich comprising a resistive acoustic porous layer forming a part of the fan duct external casing (6i) delimited by the air intake lip, a honeycombed core and a reflector (13) which send the de-icing system hot pressurized fluid in the direction of the islets and exhausts it outward from the cowling through orifices (20).