The migrant, who had been turning up to the city centre bar every day for the past 10 days, sometimes several times a day, hurled death threats, insults and became violent after his demands for free food and drink were denied by the barman.
After the police were called, the man then turned on the officers, punching and kicking them as he resisted arrest although the authorities were eventually able to overpower the migrant.
A record number of 171,000 migrants crossed the Mediterranean to Italy last year, according to official figures.
A recent report from the United Nations High Commissioner for Refugees (UNHCR) indicated that 88 per cent of migrants that arrived in Italy came from Libya in north Africa.
The arrested man demanded free food and drink from a bar
In October last year Italian police arrested a 39-year-old African immigrant from Ghana after the man went on the rampage, vandalising four churches – destroying statues and candlesticks.
The castle in Legnano, near Milan