Petroleum filtering device with impurity cleaning function

The invention relates to the field of petroleum filtering, in particular to a petroleum filtering device with an impurity cleaning function. The utility model relates to a petroleum filtering device which alternately works through self-plugging double filtering pipes and has an impurity cleaning function. The device comprises a protective shell, a filtering mechanism, an action mechanism, a petroleum blocking and clamping mechanism, a cleaning mechanism and the like. The filtering mechanism, the action mechanism and the petroleum blocking and clamping mechanism are all arranged in the protective shell, the cleaning mechanism is arranged below the protective shell, and the cleaning mechanism communicates with the filtering mechanism on the lower side. Solid impurities in petroleum flowing in the petroleum pipeline are filtered through the filtering mechanism, a control module controls the action mechanism to enable the filtering mechanism to alternately work in the protective shell, the filtering mechanism sto