Automatic flush water filter of straight-through type

The utility model relates to an automatic flush water filter of straight-through type. The utility model is composed of a three-fork-way joint, straight core joints, a plastic filtering pipe, etc. The plastic filtering pipe passes through the three-fork-way joint to be shaped in the hole between two straight core joints. When used, the utility model is arranged on a running water pipe which is provided with two taps. Making use of the self-pressure of the water plant water supply forces the microporous pipe inner wall of the plastic filtering pipe to produce the water filtering function which is come about naturally under the control of the water pressure, and the filtered water flows out. The harmful matter and the heavy metal in the water are eliminated automatically from the direct flow water. The utility model has the advantages of large water quantity, bidirectional water discharge at the same time, obvious filtration effect, simple structure and convenient installation.