Device and method for coating seeds

The invention relates to a device for coating seeds with a liquid dressing solution, comprising a housing (10) delimiting a chamber (11) for accommodating the seeds, rotating means for mixing the seeds and the dressing solution, an air duct (17) for feeding hot air into the chamber (11) and a separating unit which is permeable to the hot air and separates the air duct (17) from the chamber (11). According to the invention, it is provided that the separating unit comprises at least one perforated metal sheet (18) that has an inner face (31) facing towards the chamber (11), an outer face (30) facing towards the air duct (17) and a plurality of projections (28), wherein a projection (28) rises obliquely in the direction of the outer face (30) and forms an opening inlet (34), which is inclined to the metal sheet plane (29), on the outer face (30). The invention further relates to a method in which the device is used.