PURPOSE: To improve the fitting workability of a water cooling panel and to easily secure the fixed fitting condition, in a fitting device for water cooling panel, which can include the water cooling panel in a furnace by utilizing an armor exchanging hole.

CONSTITUTION: The fitting device 20 for the water cooling panel 10 for repairing a furnace wall brick in the blast furnace is constituted by providing a connecting pipe seat 21 included in the furnace from the armor exchanging hole 2 by integrating with the water cooled panel 10, a connecting pipe 22 joined with the connecting pipe seat 21 from outside of the furnace, a panel supporting pipe 23 connected with the surrounding part of the connecting pipe seat 21 from outside of the furnace and also fixed to a furnace iron shell 3, and a blind plate 24 for connecting the panel supporting pipe 23 with the connecting pipe 22.