The utility model discloses a strike crushing -type sand washing nib, include: hollow body, its lower extreme is fixed with the probe, its inboard is provided with the recess, the inboard of its upperend is formed with spacing portion and keeps off the ring, the setting is in spacing portion and keep off the bearing between the ring, the nib body, its slidable ground sets up at this internally, is just formed through the mode cooperation that can dismantle the connection by the nib upper part of the body and the nib lower part of the body, and the lower extreme that leans on at the bearing issupported to the upper end of nib upper part of the body, and the outside of nib lower part of the body lower extreme is provided with the reamer, and the inboard of nib lower part of the body lowerextreme is provided with the nib, be provided with the torque hole on the nib lower part of the body lateral wall more than the nib, be provided with the inlet on the nib body, its inside passageway that communicates with the inlet that is provided with, the elastic component, it sets up in the annular chamber that is formed by body, the nib body and probe cooperation. The utility model provides astrike crushing -type sand washing nib, the bold thing that can brokenly dash to do benefit to it and rush out ground, thereby accelerate the sand washing process.