Portable water purifier

The utility model discloses a portable water purifier which has a simple structure, is convenient to use, achieves a good water purification effect and is suitable for being used outdoors. The portable water purifier comprises a lower cylinder body (1), a filter core end cover (2), an upper cylinder body (3), an upper cover (4), a filter core, a water inlet hose (7) and telescopic flexible sealing connectors (8), wherein the filter core is fixedly connected with the filter core end cover (2); a water inlet (23) communicated with a water inlet side of the filter core is formed in the middle of the filter core end cover (2); the filter core end cover (2) is positioned in a cylinder body formed by the upper cylinder body (3) and the lower cylinder body (1), and the cylinder body is divided into a raw water cavity (10) and a purified water cavity (20) by the filter core end cover (2) and the filter core; the water inlet hose (7) is communicated with the raw water cavity (10); guide slots (21) are formed on the fi