Recycled concrete sampler

The utility model discloses a recycled concrete sampler, which relates to the technical field of concrete samplers and comprises a mounting cylinder, a driving component is mounted in the middle of the interior of the mounting cylinder, the bottom of the mounting cylinder is communicated with a material guide pipe, and a matching seat is arranged on the outer side of the material guide pipe. When the concrete crusher is used, the driving assembly is directly used for driving the first rotating shaft and the third rotating shaft connected through the transmission assembly to rotate, then the first impeller and the symmetrical second impeller are driven to rotate, in the process, the rotating first impeller crushes concrete into powder, and in cooperation with the rotating second impeller, the concrete is crushed into powder. By means of the eccentric design, positive pressure and negative pressure are formed at the contact positions of the first conveying pipe, the second conveying pipe and the matching barrel