Portable water purifier

The utility model belongs to a water purifier, which is composed of a filter element, an air inlet and outlet hole, a bead stopper, a filter element base support, a filter element base, a filter element cover, a source water bottle and other components. A barrel-shaped filtering layer is composed of the filter element, the filter element base support, the bead stopper and the filter element base, and a source water cavity and a pure water cavity are formed after the filter element cover are tightly closed with the source water bottle. The utility model is characterized in that the water purifier can provide convenient drinking water which conforms to the sanitary requirements, the costs of the users are low, etc. The water purifier has novel design, easy manufacture and strong practicability and can be widely popularized and used.