The utility model provides a directional air purification device in small region, its characterized in that includes the air is taked care of purification unit, blast pipe and is had the blowing opening of wind direction water conservancy diversion effect, purification unit's the air outlet and the entry linkage of blast pipe, the export of this blast pipe and blowing opening's interface connection are taked care of to the air. The utility model has the advantages that: small, light in weight conveniently carry, and convenient to use can place and use on office table top, the fresh air after the purification is brushed to user's the facial orientation of can facing to add aromatic, the dose of sobriety or water as required, or open system oxygen ware and increase the oxygen suppliment volume, not only can air -purifying, have multiple functions such as oxygenation, restoring consciouness, regulation humidity, can supply with the anion to the directional short distance of face, becausethe distance of conveying is short, reduce the anion by neutralizing chance in the transmission course, it is big to arrive facial anion density, sucks the health and does benefit to healthyly, stillplays cosmetic effect to the face.