Ceiling mounted air purifier

A ceiling mounted air purifier, comprising:

• a winnower having two winnower air entrances on two sides thereof, a winnower air exit, and a windshield;
• a base having a recessed groove disposed below a middle thereof for accommodating the winnower, two air inlet passages shaped with frame-shaped structures and disposed on two sides of the recessed groove respectively, and an integrated air exit disposed at a top thereof and corresponding to the winnower air exit of the winnower, wherein the integrated air exit is tightly connected the winnower air exit of the winnower by the windshield;
• a back shell disposed at a bottom of the base to position the winnower in the recessed groove and seal bottoms of the two air inlet passages;
• two air inlet filters respectively inserted into exits of the two air inlet passages and corresponding to the two winnower air entrances;
• a filter cartridge container disposed on the winnower air exit of the winnower;
• and
• a front shell disposed at the top of the base to release filtered air.