▎ 摘　　要

NOVELTY - The utility model claims a portable water purifying device, comprising a water bag, water bag, the one-way liquid film, filter core, water inlet and water outlet, water outlet connected with the water bag, the water bag is connected through with the raw water, a purified water bag is fixed with a one-way liquid film, one-way inverted membrane with graphite filling material of the filter core is fixed with the filter core of the filling material containing graphene comprises graphene oxide composite filter layer, negative ion filtering layer, carbon fiber layer, the water bag of the utility model and the original water bag is a foldable material. with high efficient filtering, sterilizing and bacteriostatic properties, which effectively ensures the drinking health of outdoor activities.