Wide-range temperature adjustment burner

The utility model discloses a wide-range temperature adjustment burner which comprises a cover plate (21), a substrate (22), an outer nozzle body (23), an inner nozzle body (24), an inner sleeve (25), a gas inlet pipe (2) and an air inlet pipe (3). The inner nozzle body comprises flanges (241), a cylinder body (242) and separator plates (243). The separator plates are fixed in the cylinder body to divide the cylinder body into three cavities. The upper first cavity is an upper gas cavity (5). The second cavity is a lower gas cavity (4). The third cavity is divided by the inner sleeve into an inner combustion cavity (12) and an outer combustion cavity (10). The upper gas cavity, the lower gas cavity and the outer combustion cavity are communicated via upper gas spray holes (8) arranged on the first separator plate and lower gas spray holes (9) arranged on the second separator plate. The lower gas cavity and the inner combustion cavity are communicated via central holes disposed on the second separator plate. T