Cleaning device for pre-buried line pipeline in protective engineering wall surface

The utility model provides a cleaning device for an embedded line pipeline in a protective engineering wall surface, which comprises a hydraulic drill bit and a bearing, and the bottom of the hydraulic drill bit is rotatably connected with the bearing; three protrusions are arranged on the top face of the hydraulic drill bit, and each protrusion comprises a first protrusion vertical face, a second protrusion vertical face and a protrusion inclined face, wherein the first protrusion vertical face and the second protrusion vertical face are arranged in the axial direction of the hydraulic drill bit, and an included angle exists between the protrusion inclined face and the axial direction of the hydraulic drill bit. Water spraying holes are formed in the protruding inclined face and communicated with the inner cavity of the hydraulic drill bit. 本实用新型提供一种防护工程壁面内预埋线路管道的清洗装置，包括水利钻头、轴承，水利钻头底部与轴承转动连接；其中水利钻头顶面设置三个凸起，每个凸起包括沿水利钻头轴向设置的第一凸起竖直面、第二凸起竖直面，以及与水利钻头轴向存有夹角的凸起斜面；凸起斜面上设置喷水孔，喷水孔与水利钻头内部空腔连通。