Switch cabinet for electrical engineering

The utility model discloses a switch cabinet for electrical engineering, which comprises a box body, air outlets, a support, fan blades and a filter screen, the left side and the right side of the box body are provided with the air outlets, the support is fixedly connected inside the air outlets, the right side of the support is movably connected with the fan blades, the right side of the air outlets is movably connected with the filter screen, and the surfaces of the fan blades are provided with positioning cavities. An adjusting mechanism and a positioning mechanism are arranged in the positioning cavity, the front side of the adjusting mechanism penetrates to the front side of the fan blade, and the positioning mechanism is used in cooperation with the support. Through cooperative use of the box body, the air outlet, the support, the fan blades, the filter screen, the adjusting mechanism and the positioning mechanism, the problems that a large amount of dust is attached to the surfaces of the fan blades du