Micro-bubble reaction device

The utility model discloses a micro-bubble reaction device which comprises a reaction barrel body. A material inlet, an air charging hole and a slag hole are arranged on the reaction barrel body, a micro-hole plate is arranged at the bottom of the reaction barrel body, a plurality of micro-hole pipes are arranged at the upper part of the micro-hole plate, the micro-hole pipes are arranged in parallel and are closed at one ends, and the other ends of the plurality of micro-hole pipes are jointed with a liquid converging pipe which is led out to the exterior of the reaction barrel body by a leading-out pipe. The micro-bubble reaction device has the advantages that bubbles are thin and small, the contact area of air and liquid is large, and the using ratio of air is high.