Rainfall drainage device for construction site

The rainfall drainage device for the construction site comprises a bottom plate, universal wheels are arranged at the bottom end of the bottom plate, a drainage box is fixed to the right side of the end face of the bottom plate, and a hose winding frame is arranged on the corresponding left side of the drainage box. The problem that the water inlet pipe fitting is blocked due to the fact that silt in the rainwater is deposited to the bottom of the water collecting hopper due to the fact that the rainwater is static is avoided, then the rainwater is conveyed into the purification filter through the water inlet pipe fitting to be purified and filtered, and therefore the rainwater is changed into an available water source, and the purpose of saving water resources is achieved. And the filtered water is discharged into a collecting cavity for temporary storage, and the water is pumped out through a draining pump for recycling when needed, so that the rainwater is effectively recycled after being treated, and the