The utility model provides a pipeline formula liquid filter, includes simplified chamber, descends simplified chamber, it is the annular with lower simplified chamber cross section to go up simplified chamber, it is equipped with the feed inlet to go up simplified chamber top, simplified chamber bottom is equipped with the bin outlet down, going up simplified intracavity and being equipped with a plurality of cylindricality filter cores, cylindricality filter core discharge gate passes through the connecting pipe and is connected with lower simplified chamber. Compared with the prior art, the utility model discloses beneficial effect is: this pipeline formula liquid filter can extensively be arranged in connecting above the various pipelines and filters the impurity of material totally, and its filter effect is good, low cost, simple manufacture, the change is easy, the usage is extensive.