The invention relates to an oil-gas well pipe cleaning and well washing integral tool, which comprises a body and knife boards fixedly arranged on the body, wherein the upper end and the lower end of the body are respectively provided with an upper connecting head and a lower connecting head; the upper connecting head is provided with a screw hole; the lower connecting head is provided with external screw threads; knife board grooves in spiral distribution in the axial direction of the body and guide blocks distributed along the outer wall circumference of the body in a position near the lower connecting head are distributed on the outer wall of the body between the upper connecting head and the lower connecting head; the knife boards are embedded in the knife board grooves; and springs are arranged between the knife boards and the knife board grooves. With the adoption of the technical scheme, the oil-gas well pipe cleaning and well washing integral tool has the advantages that all of the knife boards are mutually independent; the maintenance is convenient; and the knife boards can obtain potential energy in the radial direction of the body under the effect of the springs, and extend and retract along with the inner diameter change of a pipe column, so the cleaning in the pipe column is thorough, and the operation efficiency is high.