Rotary spray head for cleaning interior of tube bundle

The utility model relates to the technical field of pipeline cleaning, in particular to a rotary spray head for cleaning the interior of a pipe bundle, which comprises a head shell, a pipe shaft, a shaft barrel and a shaft seat, a cleaning spray hole is arranged at the front end of the head shell, and a rotary spray hole communicated with an inner cavity is arranged in the middle of the head shell along the tangential direction of the inner cavity of the head shell. An eccentric balancing weight is arranged on the outer side of the head shell; the tubular shaft is rotationally connected into a cavity of the shaft barrel, and the front end of the tubular shaft stretches out of the shaft barrel and then is detachably connected with the bottom of the head shell. The inside of the tube bundle is cleaned in a rotary spraying mode, and the eccentric balancing weight is used for damaging the dynamic balance of rotation of the spray head during rotation, so that the spray head moves randomly in the tube bundle, the c