The invention relates to an air leaf stripping system and an agricultural machine equipped with such system and in particular has an application in the field of viticulture, for stripping leaves from vinestocks. The system intended to be mounted on an agricultural machine such as a tractor comprises adjustment means (11, 15) consisting of a rotary joint (11) and means (15) for rotating the housing (2) and comprises an arm (3, 10, 16) which has a main longitudinal axis and comprises the supply line (10) and an attachment part intended to be mounted on the agricultural machine directly or via a frame, said supply line (10) being guided along said attachment part (3) and connected to the leaf stripping means through a junction (11) in the housing (2) via said rotary joint (11), the rotating means (15) being arranged so that the housing (2) can be rotated about a first axis passing through said junction (11) and substantially perpendicular to the main longitudinal axis of the arm (3, 10, 16), between at least two separate angular positions relative to said first axis.
