Device for rapidly measuring wall protection performance of mud and use method

The invention provides a device for rapidly measuring wall protection performance of mud and a use method. The device comprises an outer cylinder, a first partition plate is arranged at the lower partof the outer cylinder, an inner cylinder is fixed at the top of the first partition plate, an annular cavity is formed between the outer cylinder and the inner cylinder, and the top of the annular cavity is communicated with a water injection device; and a drilling machine is arranged in the center of the upper portion of the inner cylinder, a drilling cylinder is installed on an output shaft ofthe drilling machine, the drilling machine is connected with a mud circulation system used for providing wall protection mud, and a sediment box is arranged at the bottom under the drilling cylinder.The device solves the problems that in actual engineering, after the drilling machine drills holes and conducts forming, the damage effect of pore water pressure on the hole walls and the quality of real-time prepared mud on th