Device for treating radioactive materials

The invention provides a device for processing radioactive materials, which comprises a material container, a material channel and a shielding structure, the shielding structure comprises a first-stage shield and a second-stage shield, the second-stage shield is arranged outside the first-stage shield, the first-stage shield comprises a container shield and a channel shield, the container shield is arranged outside the material container, and the channel shield is arranged outside the material container. The channel shield at least partially surrounds a material channel in the device, the periphery of the material channel is completely surrounded by a shielding structure, and the second-stage shield comprises a shielding window. The shielding window is arranged in the device, so that engineers can operate, inspect and maintain the device more conveniently in the operation process of the device, the maintenance difficulty of nuclear facilities is reduced, meanwhile, ionizing radiation is protected and shielded