Intelligent self-circulation well washing device

The invention provides an intelligent self-circulation well washing device, wherein a drainage fluid treatment system in a washing fluid treatment part is controlled by an intelligent control treatment part to desand the washing fluid, and then subjected to impurity separation by a settling tank, the drainage fluid which has been subjected to impurity separation is rough filtered by a coarse strainer and fine filtered by a fine filter to clean the washing fluid, a working fluid power system in the washing fluid treatment part is controlled by the intelligent control treatment part to adjust the rotating speed of an engine so as to use the cleaned washing fluid as the working fluid to be converted into high-pressure working fluid by a well washing pump to output, and thus the cleaning of the well is achieved. The intelligent self-circulation well washing device is a vehicle-mounted well washing vehicle, and has a function of intelligently controlling the whole washing process; according to the intelligent self