The invention aims at providing a healthy portable air filter which is composed of an airtight mask, a nose suction pipe, a filtering box, a front filter screen, an efficient particle filter screen, a smell filter screen, a micro fan, an air inlet, a fan battery, a charging interface, a fan switch and belts. The healthy portable air filter has the beneficial effects that according to the healthy portable air filter, the airtight mask and the air filter are combined, carrying is convenient, and the inserted filter screens are convenient to demount and replace; the micro fan is arranged in the filtering box, and therefore the healthy portable air filter can be conveniently used in a room or used when no air flows; the belts are arranged on the two side of the filtering box, and therefore the healthy portable air filter can be hung on the waist and be conveniently used when a user goes out; and the rechargeable battery is used, and therefore the healthy portable air filter can be used outdoors and be charged through the charging interface when the battery is small in electricity quantity.