Concrete crack repairing device and concrete crack repairing method thereof

The invention provides a concrete crack repairing device. The concrete crack repairing device comprises a moving trolley, wherein a vortex air pump, a material storage box, a material mixing box, a drilling device and a slotting device are fixedly connected to the upper end face of the moving trolley in sequence, the upper end face of the material mixing box and the upper end face of the material storage box are fixedly connected with an air pipe, the upper end face of the air pipe is fixedly connected with an atomizer, the drilling device comprises a first fixing frame, a first hydraulic air cylinder, a first fixing plate and drilling machines, the first hydraulic air cylinder is fixedly connected to the upper end face of the first fixing frame, the first fixing plate is arranged in the first fixing frame, and the two groups of drilling machines are symmetrically and fixedly connected to the lower end face of the first fixing plate, the slotting device comprises a second fixing frame, a second hydraulic air