The present invention provides a dry-powder inhaler device comprising: o a casing o an air inlet located at a first terminus of said casing o a powder delivery port located at a second terminus of said casing, which powder delivery port is positioned distal to said air inlet and o an elongated assembly located within an interior of said casing, wherein: • a first terminus of said assembly is located proximally to said air inlet • a second terminus of said assembly is located proximally to said powder delivery port • said assembly is fitted within said casing such that said assembly partially rotates within said casing about a single axis and • said assembly comprises at least one compartment containing a dry-powder, wherein said compartment containing a dry-powder is located proximally to said second terminus of said assembly and said compartment containing a dry-powder comprises a porous structure encasing said dry-powder whereby airflow through said device causes said assembly to partially rotate within said casing about a single axis and dry-powder is thereby released from said compartment and becomes entrained in said airflow.La présente invention concerne un inhalateur de poudre sèche comprenant : un tube un orifice admission dair placé à une première extrémité du tube un orifice de distribution de poudre placé à une deuxième extrémité du tube et ayant une position distale par rapport à lorifice dadmission dair, et un ensemble allongé placé à lintérieur du tube et dans lequel une première extrémité de cet ensemble a une position proximale par rapport à lorifice dadmission dair une deuxième extrémité de cet ensemble a une position proximale par rapport à lorifice de distribution de poudre cet ensemble sadapte à lintérieur du tube de façon à tourner partiellement dans le tube autour dun axe unique lensemble comprend également au moins un compartiment contenant une poudre sèche, ce compartiment contenant une poudre sèche a une position proximale par rapport à une
