Waste heat recovery device of compressor for feed production

The utility model relates to the technical field of feed processing, in particular to a waste heat recovery device of a compressor for feed production, which comprises an air compressor, a compressed air input pipe, an air-cooled dryer and a compressed air output pipe. The waste heat recovery device further comprises an air inlet pipe, a shell, a hot air outlet pipe, an air conveying pump, an air conveying pipe, an air spraying pipe and a water storage tank which are sequentially communicated, the air-cooled drying machine is contained in the shell, and the compressed air input pipe and the compressed air output pipe both extend into the shell and are communicated with the air-cooled drying machine. And the gas ejector pipe is accommodated at the bottom of the water storage tank. Air for heat exchange in the air-cooled drying machine is input into the water storage tank through the hot air outlet pipe, the air conveying pump, the air conveying pipe and the air spraying pipe, hot air makes direct contact with