The invention discloses a novel passive super-gravity rotary bed device. The device comprises a case, a rotor, a rotating shaft, a gas pipeline I, a gas pipeline II, a liquid distributor and a liquid outlet, wherein the rotor is arranged in the case and rotationally connected with the case through the rotating shaft; the gas pipeline I, the gas pipeline II and the liquid outlet are arranged on the case; the liquid distributor is arranged on the inner edge of the rotor. The device is characterized in that blades are arranged on the inner edge, the outer edge or both the inner and outer edges of the rotor. Compared with a traditional super-gravity rotary bed, the device has the advantages that the device is more energy-saving and more compact in structure, a rotary seal for connecting the shaft and the case can be omitted, and the manufacturing cost is low. The rotating part is completely covered with the case, so that the safety performance of the device is further improved, and the device can be applied to occasions such as high-temperature and high-pressure reactions, absorption and the like easily.