Air purifier

An air purifier, comprising:

• a first body comprising a first housing and a flow guide member;
• and
• a second body, configured to take in air and filter the incoming air and comprising a second housing, wherein the second body is detachably connected to the first body;
• a plurality of buckles arranged on the flow guide member, and a plurality of snap-fit members concavely arranged on an inner wall of the second housing;
• the plurality of buckles and the plurality of snap-fit members being circumferentially-distributed;
• and
• a plurality of filter guides positioned around an interior surface of the second body, wherein each of the plurality of filter guides vertically spans a filter screen of the second body;
• wherein the number of the buckles is greater than the number of the snap-fit members, such that each of the snap-fit members is capable of being connected to one buckle, and all the snap-fit members are configured to connect to each of the buckles;
• and
• wherein the first body is enabled to rotate relative to the second body, so that the buckles are capable of being hooked with the snap-fit members to connect the first body to the second body in a butt joint, and the buckles are capable of being separated from the snap-fit members to separate the first body from the second body.