Abstract: The invention relates to an air intake structure that can be mounted upstream of a nacelle middle structure for an aircraft engine, and that particularly includes: an outer wall (7) including a lip (9) and that can be mounted relative to said middle structure so as to move between a rear position and a front position; a wall (11) defining a de-icing compartment (13) in said lip (9); at least one de-icing collector (15) extending in said compartment (13); and at least one hot-air supply duct (17) of said collector (15), that can be rigidly connected to said middle structure. The wall (11) is tightly secured inside said lip (9), and said supply duct (17) is connected to said collector (15) by removable sealing means (27, 29, 31, 35).