This invention relates to the field of vine-stripping machines. With known vine-stripping machines, it was difficult to achieve optimal suction, prevent damages to grape bunches, and/or to make the stripping head reversible in order to orient the head in different directions. This invention is directed to a double-stream stripping device comprising at least one stripping head (1) equipped with a first perforated (2a) drum (2) and a second drum (3) working in rotation with the first drum (2) a suction system (4) capable of creating negative air pressure in said first drum (2) and a system for driving drums (2) and (3) in rotation. The suction system comprises two main suction openings and a turbine system and channelling means (8, 9) making it possible to connect the latter to said main suction openings. Each open free end of the first drum is connected at one of said main suction openings in such a way as to create negative pressure, with a double air stream, constant and uniform, in the first drum, essentially over its entire length.
