PROBLEM TO BE SOLVED: To eliminate some defects found in the case of prior art that a blower fixing in a green house is carried out by fixing fittings arranged at a beam and U-bolts to cause the blower to be usually removed when dispersion of chemicals, replacement of a vinyl film and removal of a vinyl film in summer season are performed, its structure should be improved over its one-man removal and fitting capabilities, its structure is not sufficient since it has no function enabling a rotational position to be changed even though it has upward or downward wind discharging function (a depression angle adjustment function).SOLUTION: This invention relates to an installation fitting fitted to a fitting member of a house, a pair of hanger fittings arranged at the installation fitting and a blower fitting device supported by the pair of hanger fittings. The installation fitting is provided with rotating position adjustment means for fixing a rotating (turning) position of the blower or releasing fixed state of the blower and at the same time the installation fitting and the hanger fittings are provided with depression angle adjusting means for adjusting a depression angle of the blower. The fan depression angle adjustment and the rotational position adjustment can be easily carried out. In addition, the blower can be supported at a beam by oneself.
