An air filter for a motor vehicle

The air filter (10) includes a cylindrical outer body (11) intended to be mounted essentially vertically and a dry filter element (15), in the form of a hollow cylinder, housed in the body (11) for filtering the air which enters through an inlet duct (12) and flows towards an intake duct (13) of the engine. The filter also includes a segment of tube (14) arranged inside the filter element (15) and the height of which is about half the height of the filter element (15), in such a manner that the air suction zone is moved away from the bottom of the filter, where there is the maximum depression caused by the intake duct and where the water retained by the filter element (15) is mostly concentrated during operation.