WJ2 underground internal combustion LHD has a bucket capacity of 2m³ and a rated load of 5t, which meets the requirements of mining safety certification. It is suitable for shoveling, transporting and unloading operations of mine roadways and other small tunnel materials in non-explosive environments, and can meet the needs of underground mining. During the process, there is a requirement to load ore trucks within 20t. The machine has a high protection level and is suitable for the humid and dusty environment of 3m×3m roadways in underground mines. The machine has a high degree of intelligence, is safe and reliable to use, and has good overall machine stability, which can greatly improve mine productivity and profitability.