Blow-down tank cleaning device

The invention discloses a blow-down tank cleaning device. The blow-down tank cleaning device comprises a bracket (1), wherein the bracket is provided with a blow-down tank (2); a rectangular blow-downgroove (3) is formed in one side of the bottom of the blow-down tank; a sludge crushing assembly (4) is arranged at the bottom of the rectangular blow-down groove; vertical frameworks (5) are arranged at two outer sides of the blow-down tank; a hoisting assembly (6) is arranged in the vertical frameworks; the hoisting assembly is connected with a horizontal framework (7) located between the two vertical frameworks; a translation assembly (8) is arranged in the horizontal framework; the translation assembly is connected with a sludge scraping plate (9). According to the blow-down tank cleaningdevice disclosed by the invention, the sludge scraping plate moves vertically or horizontally, sludge stuck on the inner side face of the blow-down tank can be moved and then is crushed through the sludge crushing assembly, s