Device suitable for ultrafine powder surface modification

The utility model relates to a device suitable for superfine powder surface modification, which comprises a mixing bin, an upper mixing component and a lower mixing component, the upper mixing component and the lower mixing component are mounted in the mixing bin and are respectively provided with a rotary power mechanism, and a power input end of each rotary power mechanism is positioned in the mixing bin. The power output end of the rotary power mechanism located in the mixing bin is provided with a grounding wire capable of processing static electricity formed in the split surface modification period, and the grounding wire is connected with the ground; according to the device, a large amount of static electricity formed in the surface modification process of the superfine powder can be introduced into the ground through the external grounding wire, and powder agglomeration caused by the static electricity is prevented; the powder adhering to the inner wall of the mixing bin can be scraped off through the