The invention relates to a device intended for decontaminating waste by way of microwaves, comprising: - a frame (15), - conveying means for transferring the waste in a sealed manner with respect to the microwaves associated with microwave heating means that are designed to treat the waste conveyed by the conveying means, characterized in that said conveying means comprise a chamber, which is sealed with respect to microwaves, which is disposed horizontally or approximately horizontally and which is at least partially mobile with respect to said frame (15), elastic means (16, 17) connecting said at least one mobile part of the chamber to the frame, and also a vibration generator (12, 13) able to transmit a vibrational movement to said at least one mobile part of the chamber in order to ensure the transfer of the waste (9) by way of vibrations from an inlet (10) for the waste into said chamber towards an outlet (22) for the waste from said chamber, said microwave heating means being arranged outside the chamber in order to treat the waste in said chamber which is sealed with respect to microwaves. The device allows in particular the decontamination of medical waste.Dispositif destiné à la décontamination des déchets par micro-ondes comprenant : - un bâti (15), - des moyens dacheminement pour le transfert des déchets de manière hermétique aux micro-ondes associés à des moyens de chauffage par micro-ondes agencés pour traiter les déchets convoyés par les moyens dacheminement, caractérisé en ce que lesdits moyens dacheminement comprennent une enceinte, hermétique aux micro-ondes, disposée horizontalement ou sensiblement horizontalement, au moins en partie mobile par rapport audit bâti (15), des moyens élastiques (16,17) reliant ladite au moins une partie mobile de lenceinte et le bâti, ainsi quun générateur de vibration (12,13), aptes à transmettre un mouvement vibratoire à ladite au moins une partie mobile de lenceinte de façon à assurer le transfert des déchets (9) pa
