Tunnel type dry -off oven hot blast blowpipe apparatus

The utility model discloses a tunnel type dry -off oven hot blast blowpipe apparatus, including the shell that is fixed in tunnel type dry -off oven air inlet position department, this shell has the round and connects the limit, is provided with the connecting hole in this connection edge annular the top annular of shell is provided with the through -hole more than two, forms rank trapezoidal surface after the opening part of through -hole is recessed, and this through -hole is processed has the internal thread, the shell has filter equipment through the through -hole cooperation, filter equipment includes a pipe fitting, and the last lower extreme of pipe fitting all sets up the threaded portion, lower extreme the threaded portion cooperates through -hole, upper end the threaded portion is connected with a filter cup, and filter cup's outer wall department sets up a plurality of air inlet grooves, and the cooperation of air inlet groove department has the filter screen of metal material, this device can filt