Marching type high flow aerosol sampling device

The invention relates to the technical field of radioactive aerosol monitoring and provides a marching type high flow aerosol sampling device. The device comprises an aerosol filter paper roller, a paper advancing mechanism, a sampling mechanism and a sample preparation mechanism, the aerosol filter paper roller is formed by folding a single piece of filter paper into a polygonal-star roller shape and provided with an upper cover and a lower cover, and the upper cover and the lower cover can be buckled into a whole through conical teeth. The device is large in filtering area, high in sampling flow, low in detection lower limit and small in operation space, meanwhile, the automatic paper advancing function is achieved, sampling can be conducted continuously, and monitoring can be conducted in real time.