The utility model relates to the technical field of drinking utensils, in particular to a filtering type folding water bag which comprises a water bag body, a lifting
handle is arranged on the water bag body, a water outlet end is arranged at the lower end of the lifting
handle, a
screw cap is in
butt joint outside the water outlet end in a matched mode, a faucet valve is arranged on the
screw cap, and a
butt joint end is arranged on the inner side of the
screw cap. According to the water bag, the
filter element pipe extending into the water bag body is inserted into the inner side of the screw cap, real-time filtering in the
water source flowing process is achieved, water filtering equipment does not need to be additionally carried, and the water bag is convenient to use. The problem that a traditional water bag can only store water and cannot purify water is solved, the safety of outdoor drinking water is improved, the design that the
filter element pipe is connected with the
butt joint end of the inner side of the screw cap in an inserted mode is adopted, a plurality of components do not need to be disassembled when the
filter element is replaced, the filter element can be replaced in an inserted and pulled mode only by unscrewing the screw cap, and maintenance operation in the outdoor environment is simplified.