Oil-gas gathering and transporting filtering device

The utility model provides an oil gas gathering and transportation filtering device. The utility model relates to the technical field of oilfield gathering. The liquid inlet pipe is connected with a three-way ball valve; outlets of the three-way ball valve are respectively connected with a filter; each filter inlet pipe is connected with a pressure pipe, each pressure pipe is communicated with a cylinder barrel, pistons are arranged in the two cylinder barrels and connected with the cylinder barrels in a sealing clearance fit mode, and the rear portions of the pistons are connected with ejector rods; the ends of the two ejector rods are located on the left side and the right side of a handle of the three-way ball valve. According to the device, the characteristics that the filtering capacity of the filter is reduced and the inlet pressure before filtering is increased are utilized; when the filtering capacity of one filter is reduced, the other filter is switched in time, the whole filtering process is uninte