The invention discloses a rotation type device for spraying nanometer fibers. An inner material bin in the device comprises an outer device shell, an inner shell cavity and two or more spinning nozzles, the inner shell cavity is formed in the outer device shell, a spinning filament source is arranged inside the inner shell cavity, the spinning nozzles communicated with the inner shell cavity are connected to the side wall of the outer device shell, an upper heating device and a lower heating device are arranged at the top and the bottom of the outer device shell respectively, a longitudinal sliding groove is formed in the middle of the upper heating device and is in vertical and sliding fit with a sliding tube located inside the longitudinal sliding groove, the bottom end of the sliding tube penetrates through a material-containing top opening and then extends into the inner shell cavity, the top end of the sliding tube extends upwards to the part over the upper heating device, a tubecavity in the sliding tube is communicated with the inner shell cavity, and the bottom of the lower heating device is connected with the top end of a driving main shaft. In the design, the rotation type device is high in production efficiency, good in heating effect and collecting effect, high in adjustability and stability and diversified in product form.