Equipment for detecting asphalt in highway engineering

The invention belongs to the technical field of asphalt detection equipment, and particularly relates to asphalt detection equipment for highway engineering, which comprises a workbench, an upper pressure head and a lower pressure head, the upper pressure head and the lower pressure head are provided with heat preservation cavities corresponding to accommodating cavities, wall plates at the rear ends of the heat preservation cavities are provided with air inlet and outlet pipe orifices, the air inlet pipe orifice is detachably connected with a first hot air hose, and the air outlet pipe orifice is detachably connected with a second hot air hose. The first hot air hose is connected with an air heater through an air supply pipe, the air supply pipe is further connected with a second hot air pipe, the tail end of the second hot air pipe surrounds to form an annular pipe matched with the containing cavity in shape, air outlet holes are evenly formed in the annular pipe at intervals, and an upper pressing head lif