To destroy a physical destination, use the destroy dst subcommand. This is the syntax of the destroy dst subcommand:
destroy dst -t destType -n destName
The subcommand destroys the physical destination of the specified type and name.
Example:
imqcmd destroy dst -t q -n myQueue -u admin
Destroying a physical destination purges all messages at that destination and removes it from the broker; the operation is not reversible.
You cannot destroy the dead message queue.