Boiler for ship

The utility model discloses a marine boiler which comprises a marine boiler body with a water injection pipe, the top of the marine boiler body is fixedly connected with an air outlet pipe, the inner wall of the marine boiler body is fixedly connected with a stabilizing frame, and the rear side of the marine boiler body is fixedly provided with a servo motor through a support. The output end of the servo motor is fixedly connected with a driving bevel gear, and the middle, close to the rear side, of the marine boiler body is rotationally connected with a two-way threaded rod through a bearing in a support. Through the cooperation of the structures, the driving end is arranged to control the adjusting structure to move the water storage tank so that the water storage tank can be moved out of the marine boiler, the filter screen capable of pulling the scraper is additionally arranged to rapidly and roughly clean water scale, a worker can conveniently and finely clean water scale impurities in the follow-up proc